Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 6:26:50 PM (PDT) on Friday, July 25, 2025.
The magnitude 1.1 event occurred 16 km (10 miles) NNE (19 degrees) of Angwin, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Friday, July 25, 2025 at 6:26:50 PM (PDT) Saturday, July 26, 2025 at 1:26:50 (UTC) |
| Distance from |
Angwin, CA - 16 km (10 miles) NNE (19 degrees) Hidden Valley Lake, CA - 18 km (11 miles) SE (125 degrees) Middletown, CA - 20 km (13 miles) ESE (102 degrees) Calistoga, CA - 22 km (14 miles) NE (48 degrees) Saint Helena, CA - 24 km (15 miles) NNE (17 degrees) |
| Coordinates | 38 deg. 42.9 min. N (38.714N), 122 deg. 23.2 min. W (122.387W) |
| Depth | 5.40 km (3.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=22, Nph=23, Dmin=6.2 km, Rmss=0.14 sec, Erho=0.27 km, Erzz=0.8 km, Gp=65 degrees |
| Event ID# | nc75215102 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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