2012-04-27 08:38:37 UPDATED: (Mw 4.1) OFFSHORE NORTHERN CALIFORNIA 40.4 -125.0 (1cbfb)

[ens@xxxxxxxx (USGS ENS)]

4.1 Mw - OFFSHORE NORTHERN CALIFORNIA

Preliminary Earthquake Report

Magnitude	4.1 Mw
Date-Time	27 Apr 2012 08:38:37 UTC 27 Apr 2012 01:38:37 near epicenter 27 Apr 2012 00:38:37 standard time in your timezone
Location	40.382N 124.970W
Depth	5 km
Distances	58 km (36 miles) W (276 degrees) of Petrolia, CA 64 km (40 miles) WSW (250 degrees) of Ferndale, CA 73 km (46 miles) WSW (252 degrees) of Fortuna, CA 82 km (51 miles) WSW (237 degrees) of Eureka, CA 363 km (225 miles) NW (305 degrees) of Sacramento, CA
Location Uncertainty	Horizontal: 1.4 km; Vertical 2.3 km
Parameters	Nph = 71; Dmin = 55.0 km; Rmss = 0.27 seconds; Gp = 252° M-type = Mw; Version = 5
Event ID	NC 71771805 ***This event has been revised.

For updates, maps, and technical information, see:
Event Page
or
USGS Earthquake Hazards Program

CISN Northern California Management Center
U.S. Geological Survey
Berkeley Seismological Laboratory

http://www.cisn.org/ncmc.html

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