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 4:14:19 AM (PST) on Wednesday, December 10, 2025.
The magnitude 1.7 event occurred 6 km (4 miles) E (93 degrees) of Fremont, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Wednesday, December 10, 2025 at 4:14:19 AM (PST) Wednesday, December 10, 2025 at 12:14:19 (UTC) |
| Distance from |
Fremont, CA - 6 km (4 miles) E (93 degrees) Newark, CA - 11 km (7 miles) E (84 degrees) Union City, CA - 11 km (7 miles) SE (125 degrees) Milpitas, CA - 12 km (8 miles) N (355 degrees) Pleasanton, CA - 14 km (9 miles) SSW (196 degrees) |
| Coordinates | 37 deg. 32.4 min. N (37.540N), 121 deg. 55.1 min. W (121.918W) |
| Depth | 8.56 km (5.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=11.4 km, Rmss=0.03 sec, Erho=0.7 km, Erzz=1.62 km, Gp=125 degrees |
| Event ID# | nc75277786 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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