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 10:52:24 AM (PST) on Monday, February 2, 2026.
The magnitude 1.7 event occurred 4 km (2 miles) ESE of San Ramon, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Monday, February 2, 2026 at 10:52:24 AM (PST) Monday, February 2, 2026 at 18:52:24 (UTC) |
| Distance from |
San Ramon, CA - 4 km (2 miles) ESE (110 degrees) Blackhawk, CA - 6 km (4 miles) SSW (203 degrees) Dublin, CA - 7 km (5 miles) N (359 degrees) Danville, CA - 8 km (5 miles) SE (137 degrees) Diablo, CA - 8 km (5 miles) SSE (166 degrees) |
| Coordinates | 37 deg. 46.1 min. N (37.768N), 121 deg. 56.2 min. W (121.937W) |
| Depth | 6.79 km (4.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=11.2 km, Rmss=0.02 sec, Erho=0.27 km, Erzz=1.15999997 km, Gp=74 degrees |
| Event ID# | nc75306106 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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