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 1:04:02 AM (PDT) on Sunday, August 23, 2026.
The magnitude 1.2 event occurred 1 km (1 miles) S of Angwin, CA.
The hypocentral depth is 0.04 km (0.00 miles).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Sunday, August 23, 2026 at 1:04:02 AM (PDT) Sunday, August 23, 2026 at 8:04:02 (UTC) |
| Distance from |
Angwin, CA - 1 km (1 miles) S (186 degrees) Saint Helena, CA - 7 km (4 miles) NNE (14 degrees) Calistoga, CA - 11 km (7 miles) E (99 degrees) Kenwood, CA - 18 km (11 miles) NNE (26 degrees) Yountville, CA - 20 km (12 miles) NNW (336 degrees) |
| Coordinates | 38 deg. 33.7 min. N (38.562N), 122 deg. 27.1 min. W (122.452W) |
| Depth | 0.04 km (0.00 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=9, Nph=9, Dmin=8.7 km, Rmss=0.04 sec, Erho=0.44 km, Erzz=2.17000008 km, Gp=176 degrees |
| Event ID# | nc75423442 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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