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 12:44:25 PM (PDT) on Saturday, August 23, 2025.
The magnitude 2.3 event occurred 6 km (4 miles) SSW of Pleasanton, CA.
The hypocentral depth is 15 km ( 9 miles).
| Magnitude | 2.3 - duration magnitude (Md) |
| Time | Saturday, August 23, 2025 at 12:44:25 PM (PDT) Saturday, August 23, 2025 at 19:44:25 (UTC) |
| Distance from |
Pleasanton, CA - 6 km (4 miles) SSW (197 degrees) Union City, CA - 11 km (7 miles) E (80 degrees) Fremont, CA - 11 km (7 miles) NE (45 degrees) Dublin, CA - 11 km (7 miles) SSE (159 degrees) Livermore, CA - 13 km (8 miles) SW (236 degrees) |
| Coordinates | 37 deg. 36.8 min. N (37.614N), 121 deg. 53.6 min. W (121.893W) |
| Depth | 14.84 km (9.20 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=22.1 km, Rmss=0.14 sec, Erho=1.61 km, Erzz=0.959999979 km, Gp=181 degrees |
| Event ID# | nc75227792 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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