Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 4:07:25 PM (PDT) on Tuesday, August 5, 2025.
The magnitude 0.9 event occurred 8 km (5 miles) ENE (59 degrees) of Ridgemark, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 0.9 - duration magnitude (Md) |
| Time | Tuesday, August 5, 2025 at 4:07:25 PM (PDT) Tuesday, August 5, 2025 at 23:07:25 (UTC) |
| Distance from |
Ridgemark, CA - 8 km (5 miles) ENE (59 degrees) Hollister, CA - 9 km (6 miles) E (90 degrees) San Juan Bautista, CA - 22 km (14 miles) E (89 degrees) Gilroy, CA - 30 km (19 miles) SE (126 degrees) Aromas, CA - 32 km (20 miles) E (98 degrees) |
| Coordinates | 36 deg. 50.8 min. N (36.847N), 121 deg. 17.5 min. W (121.292W) |
| Depth | 8.98 km (5.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=15, Nph=18, Dmin=6.1 km, Rmss=0.08 sec, Erho=0.27 km, Erzz=0.54 km, Gp=103 degrees |
| Event ID# | nc75219757 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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