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 3:34:13 AM (PDT) on Monday, October 20, 2025.
The magnitude 0.9 event occurred 4 km (2 miles) WNW of The Geysers, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 0.9 - duration magnitude (Md) |
| Time | Monday, October 20, 2025 at 3:34:13 AM (PDT) Monday, October 20, 2025 at 10:34:13 (UTC) |
| Distance from |
The Geysers, CA - 4 km (2 miles) WNW (299 degrees) Cobb, CA - 7 km (4 miles) WSW (242 degrees) Middletown, CA - 16 km (10 miles) WNW (286 degrees) Cloverdale, CA - 19 km (12 miles) E (94 degrees) Hidden Valley Lake, CA - 20 km (13 miles) W (265 degrees) |
| Coordinates | 38 deg. 47.6 min. N (38.793N), 122 deg. 47.6 min. W (122.793W) |
| Depth | 9.52 km (5.90 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=6, Nph=6, Dmin=0.5 km, Rmss=0.02 sec, Erho=2 km, Erzz=8.01000023 km, Gp=145 degrees |
| Event ID# | nc75251931 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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