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 10:30:05 PM (PST) on Wednesday, December 24, 2025.
The magnitude 1.9 event occurred 3 km (2 miles) NNW of Piedmont, CA.
The hypocentral depth is 13 km ( 8 miles).
| Magnitude | 1.9 - duration magnitude (Md) |
| Time | Wednesday, December 24, 2025 at 10:30:05 PM (PST) Thursday, December 25, 2025 at 6:30:05 (UTC) |
| Distance from |
Piedmont, CA - 3 km (2 miles) NNW (338 degrees) Berkeley, CA - 4 km (2 miles) SE (133 degrees) Emeryville, CA - 4 km (3 miles) ENE (60 degrees) Oakland, CA - 6 km (4 miles) NNW (347 degrees) Albany, CA - 6 km (4 miles) SE (131 degrees) |
| Coordinates | 37 deg. 51.0 min. N (37.850N), 122 deg. 14.7 min. W (122.244W) |
| Depth | 13.26 km (8.20 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=13, Nph=12, Dmin=2.8 km, Rmss=0.09 sec, Erho=1.38 km, Erzz=1.52999997 km, Gp=224 degrees |
| Event ID# | nc75286006 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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