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 5:54:11 PM (PDT) on Monday, August 18, 2025.
The magnitude 0.7 event occurred 6 km (4 miles) E (99 degrees) of Healdsburg, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.7 - duration magnitude (Md) |
| Time | Monday, August 18, 2025 at 5:54:11 PM (PDT) Tuesday, August 19, 2025 at 0:54:11 (UTC) |
| Distance from |
Healdsburg, CA - 6 km (4 miles) E (99 degrees) Windsor, CA - 6 km (4 miles) N (9 degrees) Larkfield-Wikiup, CA - 11 km (7 miles) NNW (335 degrees) Forestville, CA - 16 km (10 miles) NNE (27 degrees) Graton, CA - 19 km (12 miles) NNE (17 degrees) |
| Coordinates | 38 deg. 36.1 min. N (38.602N), 122 deg. 48.3 min. W (122.805W) |
| Depth | 6.32 km (3.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=17, Nph=20, Dmin=9.3 km, Rmss=0.08 sec, Erho=0.27 km, Erzz=0.63 km, Gp=93 degrees |
| Event ID# | nc75225632 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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