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 9:38:47 PM (PDT) on Wednesday, March 18, 2026.
The magnitude 0.7 event occurred 13 km (8 miles) NNE (30 degrees) of Calistoga, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 0.7 - duration magnitude (Md) |
| Time | Wednesday, March 18, 2026 at 9:38:47 PM (PDT) Thursday, March 19, 2026 at 4:38:47 (UTC) |
| Distance from |
Calistoga, CA - 13 km (8 miles) NNE (30 degrees) Angwin, CA - 13 km (8 miles) NNW (339 degrees) Middletown, CA - 13 km (8 miles) SE (129 degrees) Hidden Valley Lake, CA - 15 km (9 miles) SSE (161 degrees) Saint Helena, CA - 20 km (12 miles) N (352 degrees) |
| Coordinates | 38 deg. 40.9 min. N (38.682N), 122 deg. 30.1 min. W (122.502W) |
| Depth | 7.17 km (4.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=13, Nph=16, Dmin=8.1 km, Rmss=0.09 sec, Erho=0.39 km, Erzz=0.86 km, Gp=134 degrees |
| Event ID# | nc75329882 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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