earthquake.usgs.gov
USGS global earthquake catalog data provider.
Exposes the USGS earthquake catalog covering global seismic events. Callers search events by time window, magnitude, and location radius, and fetch detail records for individual events.
Return seismic events within a time window, optionally bounded by minimum magnitude and a coordinate radius.
Return the detail record for one seismic event, including felt reports, significance score, and review status.
USGS event identifier
Suggested surface — propose changes in your submission if the upstream differs.
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Start of the event window in ISO 8601
2026-07-01T00:00:00Z
End of the event window in ISO 8601
2026-07-08T00:00:00Z
Minimum magnitude to include
4.5
Center latitude for radius search
35.6762
Center longitude for radius search
139.6503
Search radius in kilometers around the center
500
Maximum number of events to return
100
No account auth required for this operation.
us7000abcd
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