Thread: 6.5 quake strikes off California coast - UPDATED

6.5 is actually a pretty strong earthquake.

I get eMail updates from the USGS and there have been amost daily 3.8 range quakes all over the state since Christmas.

Originally Posted by Bowman

Originally Posted by JohnDoe2

2.5 earthquake strikes near Milpitas

We have a dozen 2.5 quakes every week in CA.

California is one of the world's most seismically active regions. More than 300 faults crisscross the state, which sits atop two of Earth's major tectonic plates, the Pacific and North American plates. About 10,000 quakes each year rattle Southern California alone, although most of them are too small to be felt
http://www.usatoday.com/news/topstories ... 7349_x.htm

4.5 Ml - OFFSHORE NORTHERN CALIFORNIA
Preliminary Earthquake Report Magnitude 4.5 Ml
Date-Time 10 Jan 2010 02:21:38 UTC
9 Jan 2010 18:21:38 near epicenter
9 Jan 2010 18:21:38 standard time in your timezone

Location 40.618N 124.766W
Depth 13 km
Distances 43 km (26 miles) W (276 degrees) of Ferndale, CA
49 km (30 miles) WSW (255 degrees) of Humboldt Hill, CA
52 km (32 miles) NW (309 degrees) of Petrolia, CA
54 km (34 miles) WSW (250 degrees) of Eureka, CA
364 km (226 miles) NW (310 degrees) of Sacramento, CA

Location Uncertainty Horizontal: 0.7 km; Vertical 1.4 km
Parameters Nph = 92; Dmin = 57.0 km; Rmss = 0.18 seconds; Gp = 219°
M-type = Ml; Version = 2
Event ID NC 71338171

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