Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 11:58:58 PM (PDT) on Tuesday, April 21, 2026.
The magnitude 0.6 event occurred 3 km (2 miles) SE of Pacifica, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 0.6 - duration magnitude (Md) |
| Time | Tuesday, April 21, 2026 at 11:58:58 PM (PDT) Wednesday, April 22, 2026 at 6:58:58 (UTC) |
| Distance from |
Pacifica, CA - 3 km (2 miles) SE (131 degrees) San Bruno, CA - 6 km (4 miles) SW (230 degrees) Millbrae, CA - 7 km (4 miles) W (268 degrees) Montara, CA - 8 km (5 miles) NE (38 degrees) South San Francisco, CA - 8 km (5 miles) SW (216 degrees) |
| Coordinates | 37 deg. 35.8 min. N (37.596N), 122 deg. 27.7 min. W (122.462W) |
| Depth | 8.33 km (5.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=12, Nph=15, Dmin=3.7 km, Rmss=0.04 sec, Erho=0.41 km, Erzz=0.57 km, Gp=93 degrees |
| Event ID# | nc75349417 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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