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 9:16:13 AM (PDT) on Sunday, March 23, 2025.
The magnitude 1.8 event occurred 2 km (1 miles) SSW of Blackhawk, CA.
The hypocentral depth is 15 km ( 9 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Sunday, March 23, 2025 at 9:16:13 AM (PDT) Sunday, March 23, 2025 at 16:16:13 (UTC) |
| Distance from |
Blackhawk, CA - 2 km (1 miles) SSW (213 degrees) Diablo, CA - 5 km (3 miles) SE (136 degrees) San Ramon, CA - 6 km (4 miles) ENE (61 degrees) Danville, CA - 7 km (4 miles) ESE (105 degrees) Alamo, CA - 11 km (7 miles) ESE (117 degrees) |
| Coordinates | 37 deg. 48.3 min. N (37.805N), 121 deg. 55.3 min. W (121.921W) |
| Depth | 14.96 km (9.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=26, Nph=26, Dmin=2.2 km, Rmss=0.17 sec, Erho=0.39 km, Erzz=0.790000021 km, Gp=60 degrees |
| Event ID# | nc75153907 |
| Additional Information | Map Waveforms |
For more information, see https://earthquake.usgs.gov
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