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 7:02:53 PM (PDT) on Saturday, September 6, 2025.
The magnitude 0.4 event occurred 28 km (17 miles) W of Patterson, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 0.4 - duration magnitude (Md) |
| Time | Saturday, September 6, 2025 at 7:02:53 PM (PDT) Sunday, September 7, 2025 at 2:02:53 (UTC) |
| Distance from |
Patterson, CA - 28 km (17 miles) W (262 degrees) East Foothills, CA - 34 km (21 miles) E (79 degrees) Tracy, CA - 34 km (21 miles) S (182 degrees) Alum Rock, CA - 35 km (22 miles) ENE (77 degrees) Seven Trees, CA - 39 km (24 miles) ENE (64 degrees) |
| Coordinates | 37 deg. 26.2 min. N (37.436N), 121 deg. 26.5 min. W (121.442W) |
| Depth | 3.87 km (2.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=6, Nph=8, Dmin=5.2 km, Rmss=0.05 sec, Erho=0.37 km, Erzz=1.42 km, Gp=85 degrees |
| Event ID# | nc75234257 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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