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 10:13:28 AM (PST) on Sunday, November 30, 2025.
The magnitude 1.6 event occurred 4 km (3 miles) SE of San Ramon, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Sunday, November 30, 2025 at 10:13:28 AM (PST) Sunday, November 30, 2025 at 18:13:28 (UTC) |
| Distance from |
San Ramon, CA - 4 km (3 miles) SE (129 degrees) Dublin, CA - 6 km (4 miles) N (355 degrees) Blackhawk, CA - 8 km (5 miles) SSW (203 degrees) Diablo, CA - 9 km (5 miles) S (171 degrees) Danville, CA - 9 km (5 miles) SE (145 degrees) |
| Coordinates | 37 deg. 45.4 min. N (37.757N), 121 deg. 56.5 min. W (121.942W) |
| Depth | 7.36 km (4.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=11.0 km, Rmss=0.00 sec, Erho=0.35 km, Erzz=1.42999995 km, Gp=95 degrees |
| Event ID# | nc75272276 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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