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 7:28:29 PM (PDT) on Wednesday, July 30, 2025.
The magnitude 1.6 event occurred 4 km (3 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Wednesday, July 30, 2025 at 7:28:29 PM (PDT) Thursday, July 31, 2025 at 2:28:29 (UTC) |
| Distance from |
The Geysers, CA - 4 km (3 miles) ESE (120 degrees) Cobb, CA - 7 km (4 miles) S (175 degrees) Middletown, CA - 9 km (5 miles) W (275 degrees) Hidden Valley Lake, CA - 15 km (9 miles) WSW (248 degrees) Lower Lake, CA - 19 km (12 miles) SSW (209 degrees) |
| Coordinates | 38 deg. 45.5 min. N (38.759N), 122 deg. 43.0 min. W (122.716W) |
| Depth | 1.60 km (1.00 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=19, Nph=19, Dmin=0.8 km, Rmss=0.06 sec, Erho=0.26 km, Erzz=0.330000013 km, Gp=72 degrees |
| Event ID# | nc75217232 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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