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 2:23:45 PM (PDT) on Friday, August 22, 2025.
The magnitude 1.5 event occurred 4 km (2 miles) SE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Friday, August 22, 2025 at 2:23:45 PM (PDT) Friday, August 22, 2025 at 21:23:45 (UTC) |
| Distance from |
The Geysers, CA - 4 km (2 miles) SE (139 degrees) Cobb, CA - 8 km (5 miles) S (183 degrees) Middletown, CA - 10 km (6 miles) W (269 degrees) Hidden Valley Lake, CA - 16 km (10 miles) WSW (247 degrees) Healdsburg, CA - 20 km (12 miles) NE (38 degrees) |
| Coordinates | 38 deg. 45.1 min. N (38.751N), 122 deg. 43.6 min. W (122.727W) |
| Depth | 0.98 km (0.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=20, Nph=20, Dmin=1.2 km, Rmss=0.06 sec, Erho=0.27 km, Erzz=0.330000013 km, Gp=75 degrees |
| Event ID# | nc75227332 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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