USGS Earthquake Catalog

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Category: Weather · Auth: none · Status today: OK (HTTP 200) · 495 ms

Example request

This is the exact probe the sentinel runs daily — one read-only GET:

curl -s 'https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&limit=1'

Example output

Captured 2026-08-16 19:46 UTC (application/json, first 400 chars):

{"type":"FeatureCollection","metadata":{"generated":1786909562000,"url":"https://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&limit=1","title":"USGS Earthquakes","status":200,"api":"2.7.0","limit":1,"offset":1},"features":[{"type":"Feature","properties":{"mag":1,"place":"29 km NE of Paxson, Alaska","time":1786909274362,"updated":1786909336229,"tz":null,"url":"https://earthquake.usgs.gov

Checked 2026-08-16 19:46 UTC by the Free Tier Sentinel. Machine-readable: api-health.json.