Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 4:34:04 PM (PST) on Wednesday, January 21, 2026.
The magnitude 1.6 event occurred 4 km (3 miles) SE of Pacifica, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Wednesday, January 21, 2026 at 4:34:04 PM (PST) Thursday, January 22, 2026 at 0:34:04 (UTC) |
| Distance from |
Pacifica, CA - 4 km (3 miles) SE (127 degrees) San Bruno, CA - 6 km (3 miles) SW (218 degrees) Millbrae, CA - 6 km (3 miles) W (262 degrees) Hillsborough, CA - 6 km (4 miles) WNW (287 degrees) Burlingame, CA - 7 km (5 miles) W (276 degrees) |
| Coordinates | 37 deg. 35.5 min. N (37.591N), 122 deg. 27.0 min. W (122.450W) |
| Depth | 7.33 km (4.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=13, Nph=12, Dmin=2.8 km, Rmss=0.05 sec, Erho=0.33 km, Erzz=0.49000001 km, Gp=151 degrees |
| Event ID# | nc75299596 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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