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 9:58:49 AM (PDT) on Tuesday, October 21, 2025.
The magnitude 1.0 event occurred 5 km (3 miles) NW of Parkfield, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Tuesday, October 21, 2025 at 9:58:49 AM (PDT) Tuesday, October 21, 2025 at 16:58:49 (UTC) |
| Distance from |
Parkfield, CA - 5 km (3 miles) NW (309 degrees) Coalinga, CA - 26 km (16 miles) SSW (204 degrees) San Miguel, CA - 28 km (17 miles) NE (46 degrees) Cholame, CA - 28 km (17 miles) NW (325 degrees) Shandon, CA - 32 km (20 miles) NNW (343 degrees) |
| Coordinates | 35 deg. 55.7 min. N (35.928N), 120 deg. 28.5 min. W (120.476W) |
| Depth | 3.98 km (2.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=15, Nph=15, Dmin=2.1 km, Rmss=0.07 sec, Erho=0.38 km, Erzz=0.600000024 km, Gp=101 degrees |
| Event ID# | nc75252431 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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