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 #4: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 4:20:24 AM (PDT) on Monday, September 15, 2025.
The magnitude 0.8 event occurred 9 km (6 miles) SW of Corona, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Monday, September 15, 2025 at 4:20:24 AM (PDT) Monday, September 15, 2025 at 11:20:24 (UTC) |
| Distance from |
Corona, CA - 9 km (6 miles) SW (228 degrees) Home Gardens, CA - 13 km (8 miles) WSW (238 degrees) Foothill Ranch, CA - 14 km (9 miles) N (6 degrees) North Tustin, CA - 15 km (9 miles) ENE (69 degrees) Villa Park, CA - 16 km (10 miles) E (90 degrees) |
| Coordinates | 33 deg. 48.8 min. N (33.813N), 117 deg. 38.7 min. W (117.644W) |
| Depth | 4.76 km (3.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=23, Nph=37, Dmin=3.8 km, Rmss=0.14 sec, Erho=0.22 km, Erzz=0.37 km, Gp=110 degrees |
| Event ID# | ci41291744 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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