Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, 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 10:26:40 PM (PDT) on Saturday, October 4, 2025.
The magnitude 0.5 event occurred 11 km (7 miles) WSW of Corona, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Saturday, October 4, 2025 at 10:26:40 PM (PDT) Sunday, October 5, 2025 at 5:26:40 (UTC) |
| Distance from |
Corona, CA - 11 km (7 miles) WSW (239 degrees) Villa Park, CA - 13 km (8 miles) E (88 degrees) North Tustin, CA - 13 km (8 miles) ENE (62 degrees) Home Gardens, CA - 15 km (10 miles) WSW (245 degrees) Orange, CA - 15 km (9 miles) E (83 degrees) |
| Coordinates | 33 deg. 49.1 min. N (33.818N), 117 deg. 40.3 min. W (117.672W) |
| Depth | 9.28 km (5.80 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=11, Nph=18, Dmin=6.4 km, Rmss=0.17 sec, Erho=0.58 km, Erzz=0.87 km, Gp=183 degrees |
| Event ID# | ci37745284 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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