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 10:43:43 PM (PDT) on Monday, September 15, 2025.
The magnitude 1.1 event occurred 33 km (20 miles) ESE of Ridgemark, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Monday, September 15, 2025 at 10:43:43 PM (PDT) Tuesday, September 16, 2025 at 5:43:43 (UTC) |
| Distance from |
Ridgemark, CA - 33 km (20 miles) ESE (104 degrees) Hollister, CA - 37 km (23 miles) ESE (109 degrees) Los Banos, CA - 38 km (24 miles) SSW (202 degrees) South Dos Palos, CA - 40 km (25 miles) SW (232 degrees) Dos Palos, CA - 44 km (27 miles) SW (231 degrees) |
| Coordinates | 36 deg. 44.4 min. N (36.740N), 121 deg. 0.5 min. W (121.009W) |
| Depth | 1.85 km (1.10 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=12.2 km, Rmss=0.25 sec, Erho=1.93 km, Erzz=18.2800007 km, Gp=194 degrees |
| Event ID# | nc75238292 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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