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 3:58:21 AM (PST) on Wednesday, December 5, 2018.
The magnitude 1.6 event occurred 7 km (4 miles) ENE (76 degrees) of Willits, CA.
The hypocentral depth is 4 km ( 2 miles).



Magnitude 1.6 - duration magnitude (Md)
Time Wednesday, December 5, 2018 at 3:58:21 AM (PST)
Wednesday, December 5, 2018 at 11:58:21 (UTC)
Distance from Willits, CA - 7 km (4 miles) ENE (76 degrees)
Brooktrails, CA - 9 km (6 miles) ESE (103 degrees)
Redwood Valley, CA - 19 km (12 miles) NNW (340 degrees)
Ukiah, CA - 31 km (19 miles) N (349 degrees)
Talmage, CA - 34 km (21 miles) NNW (344 degrees)
Coordinates 39 deg. 25.5 min. N (39.425N), 123 deg. 16.7 min. W (123.279W)
Depth 3.85 km (2.4 miles)
Quality Good
Location Quality Parameters Nst=11, Nph=14, Dmin=7.0 km, Rmss=0.04 sec, Erho=0.34 km, Erzz=0.86 km, Gp=152 degrees
Event ID# nc73119331
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