Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT 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 quarry occurred at 11:07:38 AM (PDT) on Tuesday, April 21, 2026.
The magnitude 1.0 event (a probable quarry explosion) occurred 5 km (3 miles) N of Lake Elsinore, CA.
The hypocentral depth is -1 km (-0.30 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Tuesday, April 21, 2026 at 11:07:38 AM (PDT) Tuesday, April 21, 2026 at 18:07:38 (UTC) |
| Distance from |
Lake Elsinore, CA - 5 km (3 miles) N (351 degrees) Lakeland Village, CA - 8 km (5 miles) N (5 degrees) Good Hope, CA - 9 km (5 miles) SW (228 degrees) Perris, CA - 13 km (8 miles) SW (232 degrees) Wildomar, CA - 14 km (9 miles) NNW (338 degrees) |
| Coordinates | 33 deg. 42.8 min. N (33.714N), 117 deg. 20.2 min. W (117.336W) |
| Depth | -0.53 km (-0.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=21, Nph=21, Dmin=4.4 km, Rmss=0.18 sec, Erho=0.43 km, Erzz=31.61 km, Gp=70 degrees |
| Event ID# | ci41446384 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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