Query

Dataset

USGS catalogue records include earthquakes and other seismic events. Use Classification to select earthquakes only; unclassified historical records remain unknown, not assumed earthquakes.

Time range

Presets end at the selected End time, UTC. Start is inclusive and end exclusive unless the dataset says otherwise.

Filters
Additional filters (21)
Separate values with commas.
Separate values with commas.
Separate values with commas.
Separate values with commas.
GET /api/v1/earthquakes
Time semantics and methodology

Start is inclusive and end is exclusive, in UTC. Archive mode searches the full selected interval; the record preview is bounded independently from the graph. Historical asOf queries retain their API window limits.

Stored catalogue records are not necessarily distinct earthquakes: aliases, retractions and unresolved provider differences affect completeness. Magnitude scales are not interchangeable, and negative magnitude alone is not an error. Full-selection queries describe stored data, not a guarantee of complete provider history.

Seismic event catalogue

Matching records
…
Drawn as points
0…
Largest
…
Deepest
—among drawn points
Magnitude 5+
…
SEISMIC ATLASEarthquakes by time and depthSearch to draw the complete stored selection
n
…
drawn
0
largest
—
deepest
—

Loading the complete stored selection…

depth axis: log10(depth + 1 km), surface at top · the dense row at 10 km is mostly the catalogue's default depth · size shows magnitude on each record's native scale, not energycount strip and envelope: the complete stored selection, aggregated by the server per bucket · points: one bounded request of up to 5,000 individual records, complete at or above the stated floor · hover a mark, click to keep itthe USGS catalogue family holds a few records USGS classifies as other seismic events; add the Classification filter to select earthquakes only

Magnitude 5 and above

Amber in the graph · newest first · first 12

Time (UTC)Mag.DepthLocationRecord
Waiting for the individual points.

Complete-range graph · native series, zoom and constituent records

Independent of table pagination

Data over time

UTC · independent archive query

Search to graph all matching records across the selected range.

Selection overview

Full range · server calculated

Run a search to calculate statistics across the complete filtered selection.

Matching stored records
—
Entire filtered search; not necessarily unique provider events
First matching timestamp
Not available
Stored matching data; not a completeness certificate
Last matching timestamp
Not available
Latest matching record in this query snapshot
Time placement
Not assessed
Unplottable-record count not supplied

Source response

Set the query in the rail and search. The atlas, graph and records all describe that one selection.

Archive coverage for earthquakes
Archive coverage — upstream, stored, quarantined and public

Provider-attributed information. Coverage and scientific quality vary. Not an emergency-warning service.