Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:43:10 AM (PDT) on Thursday, July 31, 2025.
The magnitude 0.9 event occurred 12 km (8 miles) ESE of East Foothills, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 0.9 - duration magnitude (Md) |
| Time | Thursday, July 31, 2025 at 4:43:10 AM (PDT) Thursday, July 31, 2025 at 11:43:10 (UTC) |
| Distance from |
East Foothills, CA - 12 km (8 miles) ESE (115 degrees) Alum Rock, CA - 13 km (8 miles) ESE (106 degrees) Seven Trees, CA - 14 km (9 miles) ENE (68 degrees) San Jose, CA - 18 km (11 miles) E (92 degrees) Buena Vista, CA - 20 km (12 miles) E (86 degrees) |
| Coordinates | 37 deg. 20.1 min. N (37.334N), 121 deg. 41.5 min. W (121.691W) |
| Depth | 8.50 km (5.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=22, Nph=24, Dmin=4.4 km, Rmss=0.05 sec, Erho=0.22 km, Erzz=0.28 km, Gp=43 degrees |
| Event ID# | nc75217387 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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