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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 3:34:18 PM (PST) on Sunday, December 28, 2025.
The magnitude 1.5 event occurred 7 km (4 miles) WSW of Corona, CA.
The hypocentral depth is 9 km ( 6 miles).
| Magnitude | 1.5 - local magnitude (Ml) |
| Time | Sunday, December 28, 2025 at 3:34:18 PM (PST) Sunday, December 28, 2025 at 23:34:18 (UTC) |
| Distance from |
Corona, CA - 7 km (4 miles) WSW (245 degrees) Home Gardens, CA - 11 km (7 miles) WSW (250 degrees) Norco, CA - 13 km (8 miles) SW (220 degrees) Villa Park, CA - 17 km (10 miles) E (79 degrees) North Tustin, CA - 17 km (11 miles) ENE (59 degrees) |
| Coordinates | 33 deg. 50.6 min. N (33.844N), 117 deg. 38.2 min. W (117.636W) |
| Depth | 9.11 km (5.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=59, Nph=102, Dmin=5.9 km, Rmss=0.16 sec, Erho=0.15 km, Erzz=0.31 km, Gp=40 degrees |
| Event ID# | ci41148423 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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