{
  "x402Version": 2,
  "id": 30532,
  "slug": "30532",
  "resource": "https://earthquakes.use.x402atlas.com/significant",
  "description": "Significant earthquakes — search USGS seismic events above an explicit significance-score threshold, with magnitude and provenance but no danger or probability claim.",
  "type": "http",
  "serviceName": "Earthquake Intelligence",
  "resourceType": "Blockchain Data",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "5000",
      "amountUsd": 0.005,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:137",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "amount": "5000",
      "amountUsd": 0.005,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:42161",
      "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "amount": "5000",
      "amountUsd": 0.005,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
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      "amount": "5000",
      "amountUsd": 0.005,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "additionalProperties": false,
        "properties": {
          "_atlas": {
            "additionalProperties": false,
            "description": "Atlas documentation and related-route metadata added after deployment",
            "properties": {
              "docs": {
                "description": "Documentation URL for this bridge",
                "format": "uri",
                "maxLength": 512,
                "type": "string"
              },
              "related": {
                "description": "Bounded related Atlas routes",
                "items": {
                  "additionalProperties": false,
                  "description": "One related Atlas route",
                  "properties": {
                    "bridge": {
                      "description": "Related bridge name",
                      "maxLength": 64,
                      "type": "string"
                    },
                    "docs": {
                      "description": "Related bridge documentation URL",
                      "format": "uri",
                      "maxLength": 512,
                      "type": "string"
                    },
                    "summary": {
                      "description": "Short capability summary",
                      "maxLength": 256,
                      "type": "string"
                    },
                    "url": {
                      "description": "Related route URL",
                      "format": "uri",
                      "maxLength": 512,
                      "type": "string"
                    }
                  },
                  "required": [
                    "bridge",
                    "url",
                    "docs",
                    "summary"
                  ],
                  "type": "object"
                },
                "maxItems": 3,
                "type": "array"
              }
            },
            "required": [
              "docs"
            ],
            "type": "object"
          },
          "count": {
            "description": "Number of normalized events returned",
            "maximum": 200,
            "minimum": 0,
            "type": "integer"
          },
          "events": {
            "description": "Deduplicated events ordered by occurred time descending then ID",
            "items": {
              "additionalProperties": false,
              "properties": {
                "alert_level": {
                  "description": "USGS PAGER alert level when supplied, or null",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "depth_km": {
                  "description": "Reported source depth in kilometers",
                  "maximum": 1000,
                  "minimum": -100,
                  "type": "number"
                },
                "event_type": {
                  "description": "USGS seismic event type when supplied, or null",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "felt_reports": {
                  "description": "Number of USGS DYFI felt reports, or null",
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "id": {
                  "description": "Preferred public event identifier",
                  "type": "string"
                },
                "latitude": {
                  "description": "Epicenter latitude in decimal degrees",
                  "maximum": 90,
                  "minimum": -90,
                  "type": "number"
                },
                "longitude": {
                  "description": "Epicenter longitude in decimal degrees",
                  "maximum": 180,
                  "minimum": -180,
                  "type": "number"
                },
                "magnitude": {
                  "description": "USGS preferred magnitude, or null when unknown",
                  "type": [
                    "number",
                    "null"
                  ]
                },
                "magnitude_type": {
                  "description": "USGS preferred magnitude method, or null when unknown",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "occurred_at": {
                  "description": "UTC origin time when rupture began",
                  "format": "date-time",
                  "type": "string"
                },
                "official_url": {
                  "description": "Validated inert official USGS HTTPS event-page URL, or null; never fetched by this bridge",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "place": {
                  "description": "USGS textual place description, or null when unknown",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "significance": {
                  "description": "USGS significance score; not probability, damage, or danger",
                  "minimum": 0,
                  "type": "integer"
                },
                "source_network": {
                  "description": "Preferred contributing network code, or null",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "status": {
                  "description": "USGS review status when supplied, or null",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "tsunami": {
                  "description": "USGS tsunami flag; it is not a tsunami warning or prediction",
                  "type": "boolean"
                },
                "updated_at": {
                  "description": "UTC time the preferred event record was last revised",
                  "format": "date-time",
                  "type": "string"
                }
              },
              "required": [
                "id",
                "occurred_at",
                "updated_at",
                "magnitude",
                "magnitude_type",
                "place",
                "longitude",
                "latitude",
                "depth_km",
                "tsunami",
                "significance",
                "felt_reports",
                "alert_level",
                "status",
                "event_type",
                "official_url",
                "source_network"
              ],
              "type": "object"
            },
            "maxItems": 200,
            "type": "array"
          },
          "operation": {
            "const": "significant-earthquakes",
            "description": "Stable route operation",
            "type": "string"
          },
          "query": {
            "additionalProperties": false,
            "description": "Normalized effective query identity used for source and cache selection",
            "properties": {
              "days": {
                "description": "Applied rolling days",
                "maximum": 365,
                "minimum": 1,
                "type": "integer"
              },
              "limit": {
                "description": "Applied event limit",
                "maximum": 200,
                "minimum": 1,
                "type": "integer"
              },
              "min_significance": {
                "description": "Applied USGS significance-score threshold",
                "maximum": 2000,
                "minimum": 0,
                "type": "integer"
              },
              "window_end": {
                "description": "Inclusive UTC end bucket used for source query and cache identity",
                "format": "date-time",
                "type": "string"
              },
              "window_start": {
                "description": "Inclusive UTC start of the effective bucketed window",
                "format": "date-time",
                "type": "string"
              }
            },
            "required": [
              "window_start",
              "window_end",
              "days",
              "min_significance",
              "limit"
            ],
            "type": "object"
          },
          "retrieved_at": {
            "description": "UTC time this validated snapshot was retrieved",
            "format": "date-time",
            "type": "string"
          },
          "schema_version": {
            "const": "usgs-earthquake-v1",
            "description": "Pinned USGS normalization contract",
            "type": "string"
          },
          "source": {
            "additionalProperties": false,
            "description": "Official USGS provenance for the served normalized snapshot",
            "properties": {
              "generated_at": {
                "description": "USGS source-generation or event-update time",
                "format": "date-time",
                "type": "string"
              },
              "name": {
                "const": "USGS",
                "description": "Official source organization",
                "type": "string"
              }
            },
            "required": [
              "name",
              "generated_at"
            ],
            "type": "object"
          },
          "stale": {
            "description": "True only when an older validated exact-query snapshot was served after source failure",
            "type": "boolean"
          },
          "warnings": {
            "description": "Revision, freshness, source-link, and safety limitations",
            "items": {
              "description": "Actionable interpretation warning",
              "type": "string"
            },
            "type": "array"
          }
        },
        "required": [
          "operation",
          "schema_version",
          "query",
          "count",
          "events",
          "source",
          "retrieved_at",
          "stale",
          "warnings"
        ],
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "category": "science",
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "days": 30,
            "limit": 50,
            "min_significance": 600
          },
          "type": "http"
        },
        "output": {
          "example": {
            "count": 1,
            "events": [
              {
                "alert_level": "red",
                "depth_km": 10,
                "event_type": "earthquake",
                "felt_reports": 90,
                "id": "us6000tgb9",
                "latitude": 32.6817,
                "longitude": 130.7217,
                "magnitude": 6.8,
                "magnitude_type": "mww",
                "occurred_at": "2026-07-28T07:27:15.512Z",
                "official_url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000tgb9",
                "place": "The 2026 Kumamoto Region, Japan Earthquake",
                "significance": 723,
                "source_network": "us",
                "status": "reviewed",
                "tsunami": false,
                "updated_at": "2026-08-04T04:45:03.869Z"
              }
            ],
            "operation": "significant-earthquakes",
            "query": {
              "days": 30,
              "limit": 50,
              "min_significance": 600,
              "window_end": "2026-08-04T00:00:00Z",
              "window_start": "2026-07-05T00:00:00Z"
            },
            "retrieved_at": "2026-08-04T20:17:20Z",
            "schema_version": "usgs-earthquake-v1",
            "source": {
              "generated_at": "2026-08-04T20:17:14Z",
              "name": "USGS"
            },
            "stale": false,
            "warnings": [
              "USGS earthquake data can be revised and is not an emergency-warning service."
            ]
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "additionalProperties": false,
                "properties": {
                  "days": {
                    "default": 30,
                    "description": "Rolling UTC window in days",
                    "maximum": 365,
                    "minimum": 1,
                    "type": "integer"
                  },
                  "limit": {
                    "default": 50,
                    "description": "Maximum normalized events returned",
                    "maximum": 200,
                    "minimum": 1,
                    "type": "integer"
                  },
                  "min_significance": {
                    "default": 600,
                    "description": "Minimum USGS significance score; not a probability or danger rating",
                    "maximum": 2000,
                    "minimum": 0,
                    "type": "integer"
                  }
                },
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "additionalProperties": false,
                "properties": {
                  "_atlas": {
                    "additionalProperties": false,
                    "description": "Atlas documentation and related-route metadata added after deployment",
                    "properties": {
                      "docs": {
                        "description": "Documentation URL for this bridge",
                        "format": "uri",
                        "maxLength": 512,
                        "type": "string"
                      },
                      "related": {
                        "description": "Bounded related Atlas routes",
                        "items": {
                          "additionalProperties": false,
                          "description": "One related Atlas route",
                          "properties": {
                            "bridge": {
                              "description": "Related bridge name",
                              "maxLength": 64,
                              "type": "string"
                            },
                            "docs": {
                              "description": "Related bridge documentation URL",
                              "format": "uri",
                              "maxLength": 512,
                              "type": "string"
                            },
                            "summary": {
                              "description": "Short capability summary",
                              "maxLength": 256,
                              "type": "string"
                            },
                            "url": {
                              "description": "Related route URL",
                              "format": "uri",
                              "maxLength": 512,
                              "type": "string"
                            }
                          },
                          "required": [
                            "bridge",
                            "url",
                            "docs",
                            "summary"
                          ],
                          "type": "object"
                        },
                        "maxItems": 3,
                        "type": "array"
                      }
                    },
                    "required": [
                      "docs"
                    ],
                    "type": "object"
                  },
                  "count": {
                    "description": "Number of normalized events returned",
                    "maximum": 200,
                    "minimum": 0,
                    "type": "integer"
                  },
                  "events": {
                    "description": "Deduplicated events ordered by occurred time descending then ID",
                    "items": {
                      "additionalProperties": false,
                      "properties": {
                        "alert_level": {
                          "description": "USGS PAGER alert level when supplied, or null",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "depth_km": {
                          "description": "Reported source depth in kilometers",
                          "maximum": 1000,
                          "minimum": -100,
                          "type": "number"
                        },
                        "event_type": {
                          "description": "USGS seismic event type when supplied, or null",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "felt_reports": {
                          "description": "Number of USGS DYFI felt reports, or null",
                          "type": [
                            "integer",
                            "null"
                          ]
                        },
                        "id": {
                          "description": "Preferred public event identifier",
                          "type": "string"
                        },
                        "latitude": {
                          "description": "Epicenter latitude in decimal degrees",
                          "maximum": 90,
                          "minimum": -90,
                          "type": "number"
                        },
                        "longitude": {
                          "description": "Epicenter longitude in decimal degrees",
                          "maximum": 180,
                          "minimum": -180,
                          "type": "number"
                        },
                        "magnitude": {
                          "description": "USGS preferred magnitude, or null when unknown",
                          "type": [
                            "number",
                            "null"
                          ]
                        },
                        "magnitude_type": {
                          "description": "USGS preferred magnitude method, or null when unknown",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "occurred_at": {
                          "description": "UTC origin time when rupture began",
                          "format": "date-time",
                          "type": "string"
                        },
                        "official_url": {
                          "description": "Validated inert official USGS HTTPS event-page URL, or null; never fetched by this bridge",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "place": {
                          "description": "USGS textual place description, or null when unknown",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "significance": {
                          "description": "USGS significance score; not probability, damage, or danger",
                          "minimum": 0,
                          "type": "integer"
                        },
                        "source_network": {
                          "description": "Preferred contributing network code, or null",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "status": {
                          "description": "USGS review status when supplied, or null",
                          "type": [
                            "string",
                            "null"
                          ]
                        },
                        "tsunami": {
                          "description": "USGS tsunami flag; it is not a tsunami warning or prediction",
                          "type": "boolean"
                        },
                        "updated_at": {
                          "description": "UTC time the preferred event record was last revised",
                          "format": "date-time",
                          "type": "string"
                        }
                      },
                      "required": [
                        "id",
                        "occurred_at",
                        "updated_at",
                        "magnitude",
                        "magnitude_type",
                        "place",
                        "longitude",
                        "latitude",
                        "depth_km",
                        "tsunami",
                        "significance",
                        "felt_reports",
                        "alert_level",
                        "status",
                        "event_type",
                        "official_url",
                        "source_network"
                      ],
                      "type": "object"
                    },
                    "maxItems": 200,
                    "type": "array"
                  },
                  "operation": {
                    "const": "significant-earthquakes",
                    "description": "Stable route operation",
                    "type": "string"
                  },
                  "query": {
                    "additionalProperties": false,
                    "description": "Normalized effective query identity used for source and cache selection",
                    "properties": {
                      "days": {
                        "description": "Applied rolling days",
                        "maximum": 365,
                        "minimum": 1,
                        "type": "integer"
                      },
                      "limit": {
                        "description": "Applied event limit",
                        "maximum": 200,
                        "minimum": 1,
                        "type": "integer"
                      },
                      "min_significance": {
                        "description": "Applied USGS significance-score threshold",
                        "maximum": 2000,
                        "minimum": 0,
                        "type": "integer"
                      },
                      "window_end": {
                        "description": "Inclusive UTC end bucket used for source query and cache identity",
                        "format": "date-time",
                        "type": "string"
                      },
                      "window_start": {
                        "description": "Inclusive UTC start of the effective bucketed window",
                        "format": "date-time",
                        "type": "string"
                      }
                    },
                    "required": [
                      "window_start",
                      "window_end",
                      "days",
                      "min_significance",
                      "limit"
                    ],
                    "type": "object"
                  },
                  "retrieved_at": {
                    "description": "UTC time this validated snapshot was retrieved",
                    "format": "date-time",
                    "type": "string"
                  },
                  "schema_version": {
                    "const": "usgs-earthquake-v1",
                    "description": "Pinned USGS normalization contract",
                    "type": "string"
                  },
                  "source": {
                    "additionalProperties": false,
                    "description": "Official USGS provenance for the served normalized snapshot",
                    "properties": {
                      "generated_at": {
                        "description": "USGS source-generation or event-update time",
                        "format": "date-time",
                        "type": "string"
                      },
                      "name": {
                        "const": "USGS",
                        "description": "Official source organization",
                        "type": "string"
                      }
                    },
                    "required": [
                      "name",
                      "generated_at"
                    ],
                    "type": "object"
                  },
                  "stale": {
                    "description": "True only when an older validated exact-query snapshot was served after source failure",
                    "type": "boolean"
                  },
                  "warnings": {
                    "description": "Revision, freshness, source-link, and safety limitations",
                    "items": {
                      "description": "Actionable interpretation warning",
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "operation",
                  "schema_version",
                  "query",
                  "count",
                  "events",
                  "source",
                  "retrieved_at",
                  "stale",
                  "warnings"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "tags": [
        "significant-earthquakes",
        "seismic",
        "magnitude",
        "usgs",
        "geospatial"
      ]
    }
  },
  "tags": [
    "significant-earthquakes",
    "seismic",
    "magnitude",
    "usgs",
    "geospatial",
    "bazaar"
  ],
  "sourceHost": "earthquakes.use.x402atlas.com",
  "lastUpdated": "2026-10-09T23:56:33.911Z",
  "quality": {
    "calls30d": 3,
    "uniquePayers30d": 2,
    "lastCalledAt": "2026-10-09T23:56:33.745Z"
  },
  "metadata": {
    "serviceName": "Earthquake Intelligence",
    "extensions": {
      "bazaar": {
        "category": "science",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "days": 30,
              "limit": 50,
              "min_significance": 600
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "events": [
                {
                  "alert_level": "red",
                  "depth_km": 10,
                  "event_type": "earthquake",
                  "felt_reports": 90,
                  "id": "us6000tgb9",
                  "latitude": 32.6817,
                  "longitude": 130.7217,
                  "magnitude": 6.8,
                  "magnitude_type": "mww",
                  "occurred_at": "2026-07-28T07:27:15.512Z",
                  "official_url": "https://earthquake.usgs.gov/earthquakes/eventpage/us6000tgb9",
                  "place": "The 2026 Kumamoto Region, Japan Earthquake",
                  "significance": 723,
                  "source_network": "us",
                  "status": "reviewed",
                  "tsunami": false,
                  "updated_at": "2026-08-04T04:45:03.869Z"
                }
              ],
              "operation": "significant-earthquakes",
              "query": {
                "days": 30,
                "limit": 50,
                "min_significance": 600,
                "window_end": "2026-08-04T00:00:00Z",
                "window_start": "2026-07-05T00:00:00Z"
              },
              "retrieved_at": "2026-08-04T20:17:20Z",
              "schema_version": "usgs-earthquake-v1",
              "source": {
                "generated_at": "2026-08-04T20:17:14Z",
                "name": "USGS"
              },
              "stale": false,
              "warnings": [
                "USGS earthquake data can be revised and is not an emergency-warning service."
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "days": {
                      "default": 30,
                      "description": "Rolling UTC window in days",
                      "maximum": 365,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "limit": {
                      "default": 50,
                      "description": "Maximum normalized events returned",
                      "maximum": 200,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "min_significance": {
                      "default": 600,
                      "description": "Minimum USGS significance score; not a probability or danger rating",
                      "maximum": 2000,
                      "minimum": 0,
                      "type": "integer"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "properties": {
                    "_atlas": {
                      "additionalProperties": false,
                      "description": "Atlas documentation and related-route metadata added after deployment",
                      "properties": {
                        "docs": {
                          "description": "Documentation URL for this bridge",
                          "format": "uri",
                          "maxLength": 512,
                          "type": "string"
                        },
                        "related": {
                          "description": "Bounded related Atlas routes",
                          "items": {
                            "additionalProperties": false,
                            "description": "One related Atlas route",
                            "properties": {
                              "bridge": {
                                "description": "Related bridge name",
                                "maxLength": 64,
                                "type": "string"
                              },
                              "docs": {
                                "description": "Related bridge documentation URL",
                                "format": "uri",
                                "maxLength": 512,
                                "type": "string"
                              },
                              "summary": {
                                "description": "Short capability summary",
                                "maxLength": 256,
                                "type": "string"
                              },
                              "url": {
                                "description": "Related route URL",
                                "format": "uri",
                                "maxLength": 512,
                                "type": "string"
                              }
                            },
                            "required": [
                              "bridge",
                              "url",
                              "docs",
                              "summary"
                            ],
                            "type": "object"
                          },
                          "maxItems": 3,
                          "type": "array"
                        }
                      },
                      "required": [
                        "docs"
                      ],
                      "type": "object"
                    },
                    "count": {
                      "description": "Number of normalized events returned",
                      "maximum": 200,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "events": {
                      "description": "Deduplicated events ordered by occurred time descending then ID",
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "alert_level": {
                            "description": "USGS PAGER alert level when supplied, or null",
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "depth_km": {
                            "description": "Reported source depth in kilometers",
                            "maximum": 1000,
                            "minimum": -100,
                            "type": "number"
                          },
                          "event_type": {
                            "description": "USGS seismic event type when supplied, or null",
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "felt_reports": {
                            "description": "Number of USGS DYFI felt reports, or null",
                            "type": [
                              "integer",
                              "null"
                            ]
                          },
                          "id": {
                            "description": "Preferred public event identifier",
                            "type": "string"
                          },
                          "latitude": {
                            "description": "Epicenter latitude in decimal degrees",
                            "maximum": 90,
                            "minimum": -90,
                            "type": "number"
                          },
                          "longitude": {
                            "description": "Epicenter longitude in decimal degrees",
                            "maximum": 180,
                            "minimum": -180,
                            "type": "number"
                          },
                          "magnitude": {
                            "description": "USGS preferred magnitude, or null when unknown",
                            "type": [
                              "number",
                              "null"
                            ]
                          },
                          "magnitude_type": {
                            "description": "USGS preferred magnitude method, or null when unknown",
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "occurred_at": {
                            "description": "UTC origin time when rupture began",
                            "format": "date-time",
                            "type": "string"
                          },
                          "official_url": {
                            "description": "Validated inert official USGS HTTPS event-page URL, or null; never fetched by this bridge",
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "place": {
                            "description": "USGS textual place description, or null when unknown",
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "significance": {
                            "description": "USGS significance score; not probability, damage, or danger",
                            "minimum": 0,
                            "type": "integer"
                          },
                          "source_network": {
                            "description": "Preferred contributing network code, or null",
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "status": {
                            "description": "USGS review status when supplied, or null",
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "tsunami": {
                            "description": "USGS tsunami flag; it is not a tsunami warning or prediction",
                            "type": "boolean"
                          },
                          "updated_at": {
                            "description": "UTC time the preferred event record was last revised",
                            "format": "date-time",
                            "type": "string"
                          }
                        },
                        "required": [
                          "id",
                          "occurred_at",
                          "updated_at",
                          "magnitude",
                          "magnitude_type",
                          "place",
                          "longitude",
                          "latitude",
                          "depth_km",
                          "tsunami",
                          "significance",
                          "felt_reports",
                          "alert_level",
                          "status",
                          "event_type",
                          "official_url",
                          "source_network"
                        ],
                        "type": "object"
                      },
                      "maxItems": 200,
                      "type": "array"
                    },
                    "operation": {
                      "const": "significant-earthquakes",
                      "description": "Stable route operation",
                      "type": "string"
                    },
                    "query": {
                      "additionalProperties": false,
                      "description": "Normalized effective query identity used for source and cache selection",
                      "properties": {
                        "days": {
                          "description": "Applied rolling days",
                          "maximum": 365,
                          "minimum": 1,
                          "type": "integer"
                        },
                        "limit": {
                          "description": "Applied event limit",
                          "maximum": 200,
                          "minimum": 1,
                          "type": "integer"
                        },
                        "min_significance": {
                          "description": "Applied USGS significance-score threshold",
                          "maximum": 2000,
                          "minimum": 0,
                          "type": "integer"
                        },
                        "window_end": {
                          "description": "Inclusive UTC end bucket used for source query and cache identity",
                          "format": "date-time",
                          "type": "string"
                        },
                        "window_start": {
                          "description": "Inclusive UTC start of the effective bucketed window",
                          "format": "date-time",
                          "type": "string"
                        }
                      },
                      "required": [
                        "window_start",
                        "window_end",
                        "days",
                        "min_significance",
                        "limit"
                      ],
                      "type": "object"
                    },
                    "retrieved_at": {
                      "description": "UTC time this validated snapshot was retrieved",
                      "format": "date-time",
                      "type": "string"
                    },
                    "schema_version": {
                      "const": "usgs-earthquake-v1",
                      "description": "Pinned USGS normalization contract",
                      "type": "string"
                    },
                    "source": {
                      "additionalProperties": false,
                      "description": "Official USGS provenance for the served normalized snapshot",
                      "properties": {
                        "generated_at": {
                          "description": "USGS source-generation or event-update time",
                          "format": "date-time",
                          "type": "string"
                        },
                        "name": {
                          "const": "USGS",
                          "description": "Official source organization",
                          "type": "string"
                        }
                      },
                      "required": [
                        "name",
                        "generated_at"
                      ],
                      "type": "object"
                    },
                    "stale": {
                      "description": "True only when an older validated exact-query snapshot was served after source failure",
                      "type": "boolean"
                    },
                    "warnings": {
                      "description": "Revision, freshness, source-link, and safety limitations",
                      "items": {
                        "description": "Actionable interpretation warning",
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "operation",
                    "schema_version",
                    "query",
                    "count",
                    "events",
                    "source",
                    "retrieved_at",
                    "stale",
                    "warnings"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "significant-earthquakes",
          "seismic",
          "magnitude",
          "usgs",
          "geospatial"
        ]
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "earthquakes.use.x402atlas.com",
    "manifest_name": "earthquakes.use.x402atlas.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {
      "_atlas": {
        "docs": "https://example.com",
        "related": [
          {
            "bridge": "string",
            "docs": "https://example.com",
            "summary": "string",
            "url": "https://example.com"
          }
        ]
      },
      "count": 0,
      "events": [
        {
          "alert_level": "string",
          "depth_km": 0,
          "event_type": "string",
          "felt_reports": 0,
          "id": "string",
          "latitude": 0,
          "longitude": 0,
          "magnitude": 0,
          "magnitude_type": "string",
          "occurred_at": "2026-01-01T00:00:00Z",
          "official_url": "string",
          "place": "string",
          "significance": 0,
          "source_network": "string",
          "status": "string",
          "tsunami": true,
          "updated_at": "2026-01-01T00:00:00Z"
        }
      ],
      "operation": "string",
      "query": {
        "days": 0,
        "limit": 0,
        "min_significance": 0,
        "window_end": "2026-01-01T00:00:00Z",
        "window_start": "2026-01-01T00:00:00Z"
      },
      "retrieved_at": "2026-01-01T00:00:00Z",
      "schema_version": "string",
      "source": {
        "generated_at": "2026-01-01T00:00:00Z",
        "name": "string"
      },
      "stale": true,
      "warnings": [
        "string"
      ]
    },
    "type": "string"
  }
}