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 3:58:51 PM (PDT) on Thursday, July 31, 2025.
The magnitude 1.4 event occurred 3 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Thursday, July 31, 2025 at 3:58:51 PM (PDT) Thursday, July 31, 2025 at 22:58:51 (UTC) |
| Distance from |
The Geysers, CA - 3 km (2 miles) ESE (108 degrees) Cobb, CA - 6 km (4 miles) S (184 degrees) Middletown, CA - 10 km (6 miles) W (281 degrees) Hidden Valley Lake, CA - 15 km (9 miles) WSW (254 degrees) Lower Lake, CA - 19 km (12 miles) SSW (213 degrees) |
| Coordinates | 38 deg. 46.2 min. N (38.770N), 122 deg. 43.6 min. W (122.727W) |
| Depth | 1.21 km (0.80 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=1.0 km, Rmss=0.05 sec, Erho=0.25 km, Erzz=0.389999986 km, Gp=68 degrees |
| Event ID# | nc75217642 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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