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 11:41:39 AM (PDT) on Thursday, August 21, 2025.
The magnitude 1.6 event occurred 7 km (4 miles) E (97 degrees) of Santa Venetia, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Thursday, August 21, 2025 at 11:41:39 AM (PDT) Thursday, August 21, 2025 at 18:41:39 (UTC) |
| Distance from |
Santa Venetia, CA - 7 km (4 miles) E (97 degrees) San Rafael, CA - 8 km (5 miles) ENE (75 degrees) North Richmond, CA - 8 km (5 miles) WNW (297 degrees) San Anselmo, CA - 10 km (6 miles) E (80 degrees) Ross, CA - 10 km (6 miles) ENE (71 degrees) |
| Coordinates | 37 deg. 59.5 min. N (37.991N), 122 deg. 26.9 min. W (122.448W) |
| Depth | 1.86 km (1.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=2.7 km, Rmss=0.05 sec, Erho=0.3 km, Erzz=0.540000021 km, Gp=118 degrees |
| Event ID# | nc75226822 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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