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 3:36:15 AM (PDT) on Thursday, April 23, 2026.
The magnitude 1.0 event occurred 3 km (2 miles) WNW of Fontana, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Thursday, April 23, 2026 at 3:36:15 AM (PDT) Thursday, April 23, 2026 at 10:36:15 (UTC) |
| Distance from |
Fontana, CA - 3 km (2 miles) WNW (300 degrees) Rancho Cucamonga, CA - 9 km (6 miles) E (100 degrees) Bloomington, CA - 9 km (6 miles) WNW (298 degrees) Rialto, CA - 10 km (6 miles) W (272 degrees) Glen Avon, CA - 11 km (7 miles) N (1 degrees) |
| Coordinates | 34 deg. 6.6 min. N (34.109N), 117 deg. 29.0 min. W (117.483W) |
| Depth | 7.86 km (4.90 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=47, Nph=82, Dmin=4.3 km, Rmss=0.12 sec, Erho=0.17 km, Erzz=0.28 km, Gp=49 degrees |
| Event ID# | ci41447064 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
[
Index map ||
Big earthquake list ||
All earthquake list ||
Glossary of terms ||
Top page
]
[
Did you feel it? ||
ShakeMaps
|| Relative2Me
]
[ Data Sources ]
Special maps
Long Valley || Los Angeles || San Francisco
Data Sources
US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)
