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 11:00:55 AM (PDT) on Friday, April 30, 2021.
The magnitude 1.5 event occurred 6 km (4 miles) N of Healdsburg, CA.
The hypocentral depth is 7 km ( 5 miles).
|Magnitude||1.5 - duration magnitude (Md)|
|Time||Friday, April 30, 2021 at 11:00:55 AM (PDT)
Friday, April 30, 2021 at 18:00:55 (UTC)
Healdsburg, CA - 6 km (4 miles) N (355 degrees)|
Windsor, CA - 14 km (9 miles) NNW (339 degrees)
The Geysers, CA - 16 km (10 miles) SW (220 degrees)
Cloverdale, CA - 20 km (12 miles) SE (141 degrees)
Larkfield-Wikiup, CA - 20 km (13 miles) NNW (328 degrees)
|Coordinates||38 deg. 40.1 min. N (38.668N), 122 deg. 52.5 min. W (122.876W)|
|Depth||7.42 km (4.6 miles)|
|Location Quality Parameters||Nst=52, Nph=66, Dmin=5.7 km, Rmss=0.09 sec, Erho=0.19 km, Erzz=0.37 km, Gp=100 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)