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 4:21:37 AM (PDT) on Wednesday, July 29, 2026.
The magnitude 1.5 event occurred 13 km (8 miles) NNW of Angwin, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Wednesday, July 29, 2026 at 4:21:37 AM (PDT) Wednesday, July 29, 2026 at 11:21:37 (UTC) |
| Distance from |
Angwin, CA - 13 km (8 miles) NNW (342 degrees) Middletown, CA - 13 km (8 miles) SE (126 degrees) Calistoga, CA - 14 km (9 miles) NNE (32 degrees) Hidden Valley Lake, CA - 15 km (9 miles) SSE (158 degrees) Saint Helena, CA - 20 km (12 miles) N (354 degrees) |
| Coordinates | 38 deg. 41.0 min. N (38.683N), 122 deg. 29.7 min. W (122.495W) |
| Depth | 6.82 km (4.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=13, Nph=13, Dmin=8.3 km, Rmss=0.09 sec, Erho=0.33 km, Erzz=1.15999997 km, Gp=68 degrees |
| Event ID# | nc75407887 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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