Significant earthquakes — search USGS seismic events above an explicit significa
Significant earthquakes — search USGS seismic events above an explicit significance-score threshold, with magnitude and provenance but no danger or probability claim.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
595 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://earthquakes.use.x402atlas.com/significant
| Category | Search and research |
|---|---|
| Provider host | earthquakes.use.x402atlas.com |
| Networks | eip155:137, eip155:42161, eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.005 | 595 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"days": 30,
"limit": 50,
"min_significance": 600
},
"type": "http"
}
Promised output schema (from the provider)
{
"$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",