Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #904449: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 3:05:43 PM (PDT) on Tuesday, September 16, 2025.
The magnitude 2.4 event occurred 5 km (3 miles) WNW of Chester, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 2.4 - local magnitude (Ml) |
| Time | Tuesday, September 16, 2025 at 3:05:43 PM (PDT) Tuesday, September 16, 2025 at 22:05:43 (UTC) |
| Distance from |
Chester, CA - 5 km (3 miles) WNW (296 degrees) Greenville, CA - 35 km (22 miles) NW (306 degrees) Quincy, CA - 52 km (32 miles) NNW (327 degrees) East Quincy, CA - 54 km (34 miles) NW (323 degrees) Shingletown, CA - 55 km (34 miles) ESE (110 degrees) |
| Coordinates | 40 deg. 19.4 min. N (40.324N), 121 deg. 16.8 min. W (121.281W) |
| Depth | 7.33 km (4.60 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=6, Nph=10, Dmin=29.7 km, Rmss=0.20 sec, Erho=0.52 km, Erzz=1.91999996 km, Gp=147.50000000000003 degrees |
| Event ID# | nc75238537 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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