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 1:21:29 PM (PDT) on Saturday, August 16, 2025.
The magnitude 0.5 event occurred 23 km (14 miles) W of Patterson, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.5 - duration magnitude (Md) |
| Time | Saturday, August 16, 2025 at 1:21:29 PM (PDT) Saturday, August 16, 2025 at 20:21:29 (UTC) |
| Distance from |
Patterson, CA - 23 km (14 miles) W (277 degrees) Tracy, CA - 27 km (17 miles) S (173 degrees) Riverdale Park, CA - 32 km (20 miles) WSW (247 degrees) West Modesto, CA - 34 km (21 miles) WSW (246 degrees) Mountain House, CA - 35 km (22 miles) SSE (157 degrees) |
| Coordinates | 37 deg. 29.7 min. N (37.496N), 121 deg. 23.2 min. W (121.387W) |
| Depth | 5.34 km (3.30 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=5, Nph=8, Dmin=5.4 km, Rmss=0.05 sec, Erho=0.41 km, Erzz=1.04 km, Gp=132 degrees |
| Event ID# | nc75224717 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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