Sunday, January 10, 2010

2010-01-11 06:44:35 REVISED: (Mw 4.2) OFFSHORE NORTHERN CALIFORNIA 40.5 -124.9 (2c449)

Globe with Earthquake Location

4.2 Mw - OFFSHORE NORTHERN CALIFORNIA

Preliminary Earthquake Report
Magnitude 4.2 Mw
Date-Time
  • 11 Jan 2010 06:44:35 UTC
  • 10 Jan 2010 22:44:35 near epicenter
  • 10 Jan 2010 22:44:35 standard time in your timezone
Location 40.489N 124.949W
Depth 9 km
Distances
  • 59 km (36 miles) W (260 degrees) of Ferndale, CA
  • 59 km (37 miles) WNW (288 degrees) of Petrolia, CA
  • 69 km (43 miles) W (261 degrees) of Fortuna, CA
  • 74 km (46 miles) WSW (243 degrees) of Eureka, CA
  • 368 km (229 miles) NW (307 degrees) of Sacramento, CA
Location Uncertainty Horizontal: 2.2 km; Vertical 2.0 km
Parameters Nph = 54; Dmin = 52.0 km; Rmss = 0.30 seconds; Gp = 244°
M-type = Mw; Version = 3
Event ID NC 71338851 ***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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