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 7:14:43 AM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.3 event occurred 2 km (1 miles) ESE of Hayward, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.3 - duration magnitude (Md) |
| Time | Tuesday, September 23, 2025 at 7:14:43 AM (PDT) Tuesday, September 23, 2025 at 14:14:43 (UTC) |
| Distance from |
Hayward, CA - 2 km (1 miles) ESE (116 degrees) Union City, CA - 5 km (3 miles) NW (324 degrees) Fairview, CA - 5 km (3 miles) S (189 degrees) Cherryland, CA - 7 km (4 miles) SE (139 degrees) Castro Valley, CA - 7 km (4 miles) SSE (157 degrees) |
| Coordinates | 37 deg. 38.1 min. N (37.635N), 122 deg. 3.3 min. W (122.055W) |
| Depth | 2.26 km (1.40 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=11.5 km, Rmss=0.03 sec, Erho=0.54 km, Erzz=3.36999989 km, Gp=96 degrees |
| Event ID# | nc75240927 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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