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 3:07:15 AM (PST) on Wednesday, March 4, 2026.
The magnitude 1.6 event occurred 4 km (3 miles) SE of San Ramon, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Wednesday, March 4, 2026 at 3:07:15 AM (PST) Wednesday, March 4, 2026 at 11:07:15 (UTC) |
| Distance from |
San Ramon, CA - 4 km (3 miles) SE (139 degrees) Dublin, CA - 5 km (3 miles) N (352 degrees) Blackhawk, CA - 9 km (5 miles) SSW (202 degrees) Danville, CA - 9 km (6 miles) SSE (149 degrees) Diablo, CA - 10 km (6 miles) S (173 degrees) |
| Coordinates | 37 deg. 45.0 min. N (37.750N), 121 deg. 56.7 min. W (121.945W) |
| Depth | 6.42 km (4.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=4.2 km, Rmss=0.09 sec, Erho=0.39 km, Erzz=0.810000002 km, Gp=92 degrees |
| Event ID# | nc75322352 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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