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 10:27:15 AM (PST) on Monday, December 15, 2025.
The magnitude 1.6 event occurred 12 km (7 miles) ESE of East Foothills, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Monday, December 15, 2025 at 10:27:15 AM (PST) Monday, December 15, 2025 at 18:27:15 (UTC) |
| Distance from |
East Foothills, CA - 12 km (7 miles) ESE (115 degrees) Alum Rock, CA - 12 km (8 miles) ESE (106 degrees) Seven Trees, CA - 14 km (9 miles) ENE (66 degrees) San Jose, CA - 17 km (11 miles) E (92 degrees) Buena Vista, CA - 20 km (12 miles) E (85 degrees) |
| Coordinates | 37 deg. 20.1 min. N (37.336N), 121 deg. 41.8 min. W (121.696W) |
| Depth | 8.03 km (5.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=17, Nph=16, Dmin=4.8 km, Rmss=0.07 sec, Erho=0.26 km, Erzz=0.720000029 km, Gp=117 degrees |
| Event ID# | nc75280416 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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