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 1:18:35 PM (PDT) on Wednesday, July 16, 2025.
The magnitude 1.7 event occurred 12 km (8 miles) SE of Middletown, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Wednesday, July 16, 2025 at 1:18:35 PM (PDT) Wednesday, July 16, 2025 at 20:18:35 (UTC) |
| Distance from |
Middletown, CA - 12 km (8 miles) SE (125 degrees) Angwin, CA - 13 km (8 miles) NNW (342 degrees) Calistoga, CA - 14 km (9 miles) NNE (30 degrees) Hidden Valley Lake, CA - 14 km (9 miles) SSE (159 degrees) Saint Helena, CA - 20 km (13 miles) N (353 degrees) |
| Coordinates | 38 deg. 41.3 min. N (38.688N), 122 deg. 29.9 min. W (122.498W) |
| Depth | 6.67 km (4.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=19, Nph=19, Dmin=7.7 km, Rmss=0.08 sec, Erho=0.33 km, Erzz=1.02999997 km, Gp=67 degrees |
| Event ID# | nc75210907 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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