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 #8: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 2:19:08 PM (PDT) on Monday, July 21, 2025.
The magnitude 0.4 event occurred 5 km (3 miles) WSW of Corona, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 0.4 - local magnitude (Ml) |
| Time | Monday, July 21, 2025 at 2:19:08 PM (PDT) Monday, July 21, 2025 at 21:19:08 (UTC) |
| Distance from |
Corona, CA - 5 km (3 miles) WSW (247 degrees) Home Gardens, CA - 10 km (6 miles) WSW (252 degrees) Norco, CA - 11 km (7 miles) SW (217 degrees) Villa Park, CA - 18 km (11 miles) ENE (77 degrees) Yorba Linda, CA - 18 km (11 miles) ESE (103 degrees) |
| Coordinates | 33 deg. 51.1 min. N (33.851N), 117 deg. 37.3 min. W (117.622W) |
| Depth | 7.88 km (4.90 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=9, Nph=15, Dmin=6.3 km, Rmss=0.15 sec, Erho=0.42 km, Erzz=1.14 km, Gp=144 degrees |
| Event ID# | ci41027999 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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