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 4:11:42 PM (PDT) on Wednesday, August 20, 2025.
The magnitude 1.0 event occurred 21 km (13 miles) NE (54 degrees) of East Foothills, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Wednesday, August 20, 2025 at 4:11:42 PM (PDT) Wednesday, August 20, 2025 at 23:11:42 (UTC) |
| Distance from |
East Foothills, CA - 21 km (13 miles) NE (54 degrees) Alum Rock, CA - 23 km (14 miles) NE (52 degrees) Livermore, CA - 25 km (15 miles) SSE (149 degrees) Milpitas, CA - 26 km (16 miles) ENE (74 degrees) San Jose, CA - 29 km (18 miles) NE (55 degrees) |
| Coordinates | 37 deg. 29.5 min. N (37.492N), 121 deg. 37.4 min. W (121.623W) |
| Depth | 6.32 km (3.90 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=3.1 km, Rmss=0.05 sec, Erho=0.35 km, Erzz=1.59000003 km, Gp=86 degrees |
| Event ID# | nc75226462 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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