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 9:23:18 AM (PDT) on Saturday, July 19, 2025.
The magnitude 1.1 event occurred 6 km (3 miles) E (95 degrees) of Healdsburg, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Saturday, July 19, 2025 at 9:23:18 AM (PDT) Saturday, July 19, 2025 at 16:23:18 (UTC) |
| Distance from |
Healdsburg, CA - 6 km (3 miles) E (95 degrees) Windsor, CA - 7 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 - 20 km (12 miles) NNE (17 degrees) |
| Coordinates | 38 deg. 36.3 min. N (38.606N), 122 deg. 48.3 min. W (122.805W) |
| Depth | 7.64 km (4.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=26, Nph=30, Dmin=9.4 km, Rmss=0.07 sec, Erho=0.21 km, Erzz=0.47 km, Gp=88 degrees |
| Event ID# | nc75212107 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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