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 11:07:41 PM (PDT) on Monday, July 21, 2025.
The magnitude 1.1 event occurred 4 km (2 miles) NNW of The Geysers, CA.
The hypocentral depth is 1 km (0.40 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Monday, July 21, 2025 at 11:07:41 PM (PDT) Tuesday, July 22, 2025 at 6:07:41 (UTC) |
| Distance from |
The Geysers, CA - 4 km (2 miles) NNW (337 degrees) Cobb, CA - 5 km (3 miles) WSW (253 degrees) Middletown, CA - 15 km (9 miles) WNW (295 degrees) Lower Lake, CA - 18 km (11 miles) SW (232 degrees) Hidden Valley Lake, CA - 19 km (12 miles) W (271 degrees) |
| Coordinates | 38 deg. 48.6 min. N (38.810N), 122 deg. 46.5 min. W (122.774W) |
| Depth | 0.58 km (0.40 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=0.7 km, Rmss=0.03 sec, Erho=0.22 km, Erzz=0.409999996 km, Gp=77 degrees |
| Event ID# | nc75213292 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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