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 11:33:00 PM (PST) on Monday, December 8, 2025.
The magnitude 1.7 event occurred 7 km (4 miles) NE (36 degrees) of East Foothills, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Monday, December 8, 2025 at 11:33:00 PM (PST) Tuesday, December 9, 2025 at 7:33:00 (UTC) |
| Distance from |
East Foothills, CA - 7 km (4 miles) NE (36 degrees) Alum Rock, CA - 8 km (5 miles) NE (34 degrees) Milpitas, CA - 12 km (7 miles) E (90 degrees) San Jose, CA - 14 km (9 miles) NE (47 degrees) Seven Trees, CA - 17 km (10 miles) NNE (20 degrees) |
| Coordinates | 37 deg. 25.7 min. N (37.429N), 121 deg. 46.5 min. W (121.774W) |
| Depth | 8.70 km (5.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=15, Nph=15, Dmin=3.3 km, Rmss=0.04 sec, Erho=0.35 km, Erzz=0.529999971 km, Gp=97 degrees |
| Event ID# | nc75277176 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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