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 2:52:48 AM (PDT) on Saturday, October 18, 2025.
The magnitude 1.3 event occurred 13 km (8 miles) ESE of Alum Rock, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.3 - duration magnitude (Md) |
| Time | Saturday, October 18, 2025 at 2:52:48 AM (PDT) Saturday, October 18, 2025 at 9:52:48 (UTC) |
| Distance from |
Alum Rock, CA - 13 km (8 miles) ESE (110 degrees) East Foothills, CA - 13 km (8 miles) ESE (119 degrees) Seven Trees, CA - 14 km (9 miles) ENE (72 degrees) San Jose, CA - 18 km (11 miles) E (95 degrees) Buena Vista, CA - 20 km (13 miles) E (89 degrees) |
| Coordinates | 37 deg. 19.5 min. N (37.325N), 121 deg. 41.3 min. W (121.688W) |
| Depth | 6.34 km (3.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=4.5 km, Rmss=0.05 sec, Erho=0.61 km, Erzz=0.949999988 km, Gp=132 degrees |
| Event ID# | nc75250991 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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