SCEDC Home
Home

== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California



Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 9:23:21 AM (PDT) on Wednesday, May 20, 2020.
The magnitude 1.6 event occurred 14 km (9 miles) S of Ridgemark, CA.
The hypocentral depth is 8 km ( 5 miles).



Magnitude 1.6 - duration magnitude (Md)
Time Wednesday, May 20, 2020 at 9:23:21 AM (PDT)
Wednesday, May 20, 2020 at 16:23:21 (UTC)
Distance from Ridgemark, CA - 14 km (9 miles) S (176 degrees)
Hollister, CA - 18 km (11 miles) SSE (168 degrees)
Chualar, CA - 19 km (12 miles) NE (48 degrees)
Gonzales, CA - 22 km (13 miles) NNE (22 degrees)
San Juan Bautista, CA - 24 km (15 miles) SE (137 degrees)
Coordinates 36 deg. 41.2 min. N (36.687N), 121 deg. 21.3 min. W (121.355W)
Depth 8.31 km (5.2 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=9, Dmin=8.9 km, Rmss=0.14 sec, Erho=0.65 km, Erzz=1.94 km, Gp=119 degrees
Event ID# nc73391421
Additional Information map || waveforms
  

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 || Contacts ]

Research Tools
General Earthquake Information
Stations/ Instrumentation
About the Data Center