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 7:44:27 PM (PDT) on Thursday, September 18, 2025.
The magnitude 1.9 event occurred 15 km (9 miles) E (84 degrees) of Seven Trees, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.9 - duration magnitude (Md) |
| Time | Thursday, September 18, 2025 at 7:44:27 PM (PDT) Friday, September 19, 2025 at 2:44:27 (UTC) |
| Distance from |
Seven Trees, CA - 15 km (9 miles) E (84 degrees) Alum Rock, CA - 16 km (10 miles) ESE (118 degrees) East Foothills, CA - 16 km (10 miles) SE (124 degrees) Morgan Hill, CA - 19 km (12 miles) N (356 degrees) San Jose, CA - 20 km (13 miles) ESE (103 degrees) |
| Coordinates | 37 deg. 18.0 min. N (37.300N), 121 deg. 40.1 min. W (121.669W) |
| Depth | 5.61 km (3.50 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=30, Nph=28, Dmin=4.6 km, Rmss=0.07 sec, Erho=0.18 km, Erzz=0.370000005 km, Gp=47 degrees |
| Event ID# | nc75239342 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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