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 9:27:37 AM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.7 event occurred 3 km (2 miles) ESE of Berkeley, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Tuesday, September 23, 2025 at 9:27:37 AM (PDT) Tuesday, September 23, 2025 at 16:27:37 (UTC) |
| Distance from |
Berkeley, CA - 3 km (2 miles) ESE (120 degrees) Piedmont, CA - 4 km (2 miles) NNW (342 degrees) Emeryville, CA - 5 km (3 miles) NE (50 degrees) Albany, CA - 6 km (3 miles) SE (125 degrees) Orinda, CA - 6 km (4 miles) WSW (250 degrees) |
| Coordinates | 37 deg. 51.5 min. N (37.858N), 122 deg. 14.7 min. W (122.245W) |
| Depth | 7.21 km (4.50 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=31, Nph=30, Dmin=2.2 km, Rmss=0.07 sec, Erho=0.18 km, Erzz=0.330000013 km, Gp=40 degrees |
| Event ID# | nc75240967 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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