Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 11:46:21 PM (PDT) on Sunday, April 4, 2021.
The magnitude 1.0 event occurred 23 km (14 miles) SE of Livermore, CA.
The hypocentral depth is 8 km ( 5 miles).
|Magnitude||1.0 - duration magnitude (Md)|
|Time||Sunday, April 4, 2021 at 11:46:21 PM (PDT)
Monday, April 5, 2021 at 6:46:21 (UTC)
Livermore, CA - 23 km (14 miles) SE (128 degrees)|
Tracy, CA - 24 km (15 miles) SSW (210 degrees)
Mountain House, CA - 26 km (16 miles) S (183 degrees)
East Foothills, CA - 30 km (18 miles) NE (50 degrees)
Pleasanton, CA - 30 km (19 miles) ESE (114 degrees)
|Coordinates||37 deg. 33.2 min. N (37.553N), 121 deg. 33.6 min. W (121.560W)|
|Depth||7.81 km (4.9 miles)|
|Location Quality Parameters||Nst=22, Nph=29, Dmin=11.0 km, Rmss=0.11 sec, Erho=0.29 km, Erzz=0.89 km, Gp=75 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)