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 #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 3:37:17 PM (PDT) on Thursday, April 29, 2021.
The magnitude 0.8 event (a probable quarry explosion) occurred 9 km (5 miles) ESE of Fallbrook, CA.
The hypocentral depth is -1 km (-0.4 miles).
|Magnitude||0.8 - local magnitude (Ml)|
|Time||Thursday, April 29, 2021 at 3:37:17 PM (PDT)
Thursday, April 29, 2021 at 22:37:17 (UTC)
Fallbrook, CA - 9 km (5 miles) ESE (114 degrees)|
Pala, CA - 9 km (5 miles) WSW (254 degrees)
Camp Pendleton North, CA - 14 km (9 miles) ENE (77 degrees)
Temecula, CA - 17 km (10 miles) S (186 degrees)
Vista, CA - 18 km (11 miles) NNE (24 degrees)
|Coordinates||33 deg. 20.6 min. N (33.344N), 117 deg. 9.9 min. W (117.166W)|
|Depth||-0.62 km (-0.4 miles)|
|Location Quality Parameters||Nst=12, Nph=12, Dmin=6.0 km, Rmss=0.22 sec, Erho=0.83 km, Erzz=31.61 km, Gp=135 degrees|
|Additional Information|| Map
For more information, see https://earthquake.usgs.gov
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)