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 #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 8:53:14 PM (PDT) on Monday, August 11, 2025.
The magnitude 1.9 event occurred 8 km (5 miles) SW of Corona, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.9 - local magnitude (Ml) |
| Time | Monday, August 11, 2025 at 8:53:14 PM (PDT) Tuesday, August 12, 2025 at 3:53:14 (UTC) |
| Distance from |
Corona, CA - 8 km (5 miles) SW (228 degrees) Home Gardens, CA - 12 km (8 miles) WSW (238 degrees) Foothill Ranch, CA - 15 km (9 miles) N (9 degrees) Norco, CA - 15 km (9 miles) SSW (213 degrees) Villa Park, CA - 16 km (10 miles) E (88 degrees) |
| Coordinates | 33 deg. 49.2 min. N (33.819N), 117 deg. 38.1 min. W (117.636W) |
| Depth | 7.63 km (4.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=15, Nph=25, Dmin=3.6 km, Rmss=0.11 sec, Erho=0.26 km, Erzz=0.54 km, Gp=93 degrees |
| Event ID# | ci41258920 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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