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 #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 10:32:29 AM (PDT) on Tuesday, September 8, 2026.
The magnitude 1.4 event (a probable quarry explosion) occurred 10 km (6 miles) E (98 degrees) of Porterville, CA.
The hypocentral depth is -1 km (-0.40 miles).
| Magnitude | 1.4 - local magnitude (Ml) |
| Time | Tuesday, September 8, 2026 at 10:32:29 AM (PDT) Tuesday, September 8, 2026 at 17:32:29 (UTC) |
| Distance from |
Porterville, CA - 10 km (6 miles) E (98 degrees) Poplar-Cotton Center, CA - 22 km (14 miles) E (91 degrees) Lindsay, CA - 24 km (15 miles) SE (135 degrees) Woodville, CA - 27 km (17 miles) E (100 degrees) Exeter, CA - 35 km (21 miles) SE (142 degrees) |
| Coordinates | 36 deg. 3.1 min. N (36.052N), 118 deg. 54.3 min. W (118.904W) |
| Depth | -0.61 km (-0.40 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=21, Nph=27, Dmin=10.6 km, Rmss=0.23 sec, Erho=0.39 km, Erzz=31.61 km, Gp=88 degrees |
| Event ID# | ci41542888 |
| 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)
