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 11:53:12 PM (PDT) on Wednesday, October 10, 2018.
The magnitude 1.4 event occurred 3 km (2 miles) NNW of The Geysers, CA.
The hypocentral depth is -0.29 km (-0.2 miles).



Magnitude 1.4 - duration magnitude (Md)
Time Wednesday, October 10, 2018 at 11:53:12 PM (PDT)
Thursday, October 11, 2018 at 6:53:12 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) NNW (336 degrees)
Cobb, CA - 5 km (3 miles) WSW (238 degrees)
Middletown, CA - 14 km (9 miles) WNW (292 degrees)
Lower Lake, CA - 18 km (11 miles) SW (228 degrees)
Hidden Valley Lake, CA - 18 km (11 miles) W (267 degrees)
Coordinates 38 deg. 48.0 min. N (38.800N), 122 deg. 46.2 min. W (122.769W)
Depth -0.29 km (-0.2 miles)
Quality Excellent
Location Quality Parameters Nst=35, Nph=39, Dmin=1.8 km, Rmss=0.05 sec, Erho=0.11 km, Erzz=0.3 km, Gp=66 degrees
Event ID# nc73096091
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