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 6:25:21 PM (PST) on Monday, December 3, 2018.
The magnitude 0.1 event occurred 6 km (4 miles) W of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).



Magnitude 0.1 - duration magnitude (Md)
Time Monday, December 3, 2018 at 6:25:21 PM (PST)
Tuesday, December 4, 2018 at 2:25:21 (UTC)
Distance from Cobb, CA - 6 km (4 miles) W (277 degrees)
The Geysers, CA - 7 km (4 miles) NNW (329 degrees)
Kelseyville, CA - 17 km (11 miles) SSE (167 degrees)
Middletown, CA - 18 km (11 miles) WNW (299 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (241 degrees)
Coordinates 38 deg. 49.8 min. N (38.829N), 122 deg. 47.8 min. W (122.796W)
Depth 1.96 km (1.2 miles)
Quality Excellent
Location Quality Parameters Nst=21, Nph=23, Dmin=1.1 km, Rmss=0.03 sec, Erho=0.44 km, Erzz=0.21 km, Gp=51 degrees
Event ID# nc73118936
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