SCEDC Home
Home

== PRELIMINARY EARTHQUAKE REPORT ==

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



Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 3:29:18 AM (PDT) on Wednesday, May 16, 2018.
The magnitude 1.4 event occurred 8 km (5 miles) NE (48 degrees) of Ridgemark, CA.
The hypocentral depth is 7 km ( 4 miles).



Magnitude 1.4 - duration magnitude (Md)
Time Wednesday, May 16, 2018 at 3:29:18 AM (PDT)
Wednesday, May 16, 2018 at 10:29:18 (UTC)
Distance from Ridgemark, CA - 8 km (5 miles) NE (48 degrees)
Hollister, CA - 9 km (6 miles) E (79 degrees)
San Juan Bautista, CA - 22 km (13 miles) E (85 degrees)
Gilroy, CA - 29 km (18 miles) ESE (123 degrees)
Aromas, CA - 31 km (19 miles) E (95 degrees)
Coordinates 36 deg. 51.8 min. N (36.863N), 121 deg. 17.8 min. W (121.296W)
Depth 7.27 km (4.5 miles)
Quality Good
Location Quality Parameters Nst=30, Nph=33, Dmin=8.7 km, Rmss=0.05 sec, Erho=0.26 km, Erzz=0.69 km, Gp=96 degrees
Event ID# nc73016685
Additional Information map || waveforms
  

For more information, see http://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