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 5:30:28 PM (PDT) on Monday, October 20, 2025.
The magnitude 0.8 event occurred 2 km (1 miles) NW of The Geysers, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.8 - duration magnitude (Md) |
| Time | Monday, October 20, 2025 at 5:30:28 PM (PDT) Tuesday, October 21, 2025 at 0:30:28 (UTC) |
| Distance from |
The Geysers, CA - 2 km (1 miles) NW (323 degrees) Cobb, CA - 5 km (3 miles) SW (234 degrees) Middletown, CA - 14 km (9 miles) WNW (289 degrees) Lower Lake, CA - 19 km (12 miles) SW (228 degrees) Hidden Valley Lake, CA - 19 km (12 miles) W (265 degrees) |
| Coordinates | 38 deg. 47.7 min. N (38.794N), 122 deg. 46.4 min. W (122.773W) |
| Depth | 6.36 km (4.00 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=6, Nph=6, Dmin=1.3 km, Rmss=0.05 sec, Erho=1.05 km, Erzz=6.55000019 km, Gp=108 degrees |
| Event ID# | nc75252131 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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