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 2:24:20 AM (PDT) on Saturday, October 18, 2025.
The magnitude 1.5 event occurred 11 km (7 miles) ESE of Alum Rock, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Saturday, October 18, 2025 at 2:24:20 AM (PDT) Saturday, October 18, 2025 at 9:24:20 (UTC) |
| Distance from |
Alum Rock, CA - 11 km (7 miles) ESE (103 degrees) East Foothills, CA - 11 km (7 miles) ESE (112 degrees) Seven Trees, CA - 13 km (8 miles) ENE (61 degrees) San Jose, CA - 17 km (10 miles) E (88 degrees) Buena Vista, CA - 19 km (12 miles) E (82 degrees) |
| Coordinates | 37 deg. 20.7 min. N (37.344N), 121 deg. 42.4 min. W (121.706W) |
| Depth | 7.63 km (4.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=29, Nph=29, Dmin=5.6 km, Rmss=0.06 sec, Erho=0.19 km, Erzz=0.449999988 km, Gp=50 degrees |
| Event ID# | nc75250966 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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