Saturday, January 19, 2008

CAL NEWS: 4.4 Magnitude Earthquake - Red Bluff

An earthquake with a preliminary magnitude of 4.4 has shaken Northern California.

A dispatcher with the Red Bluff Police Department says she didn't feel the temblor, and there have been no reports of any damage or injuries

The U.S. Geological Survey says the quake hit at 9:18 about 27 miles west of Red Bluff and 34 miles southwest of Redding.

Event info USGS:


Magnitude 4.4 - regional moment magnitude (Mw)
Time Saturday, January 19, 2008 at 9:18:46 AM (PST)
Saturday, January 19, 2008 at 17:18:46 (UTC)
Distance from Red Bluff, CA - 44 km (27 miles) W (270 degrees)
Cottonwood, CA - 47 km (29 miles) WSW (239 degrees)
Anderson, CA - 50 km (31 miles) SW (232 degrees)
Redding, CA - 55 km (34 miles) SW (216 degrees)
Sacramento, CA - 211 km (131 miles) NNW (329 degrees)
Coordinates 40 deg. 10.5 min. N (40.175N), 122 deg. 45.3 min. W (122.755W)
Depth 10.1 km (6.3 miles)
Location Quality Fair
Location Quality Parameters Nst=119, Nph=119, Dmin=17 km, Rmss=0.35 sec, Erho=0.5 km, Erzz=0.9 km, Gp=46.8 degrees
Event ID# nc51194914
Additional Information 2-degree map
Google Earth KML (Requires Google Earth.)
Topo map centered at earthquake (This link takes you offsite.)
Did you feel it?
NCSN First Motion Mechanism 1
NCSN First Motion Mechanism 2
Waveforms
Waveforms for ShakeMap
Berkeley moment tensor solution
Update: Two quakes: This second quake occurred later in the day.
USGS information for this quake
A light earthquake occurred at 3:13:05 PM (PST) on Saturday, January 19, 2008.
The magnitude 4.7 event occurred 45 km (28 miles) W of Red Bluff, CA.
The hypocentral depth is 10 km ( 6 miles).

Magnitude 4.7 - regional moment magnitude (Mw)
Time Saturday, January 19, 2008 at 3:13:05 PM (PST)
Saturday, January 19, 2008 at 23:13:05 (UTC)
Distance from Red Bluff, CA - 45 km (28 miles) W (263 degrees)
Cottonwood, CA - 50 km (31 miles) SW (234 degrees)
Gerber, CA - 52 km (32 miles) W (278 degrees)
Redding, CA - 60 km (37 miles) SSW (213 degrees)
Sacramento, CA - 207 km (128 miles) NNW (328 degrees)
Coordinates 40 deg. 7.5 min. N (40.125N), 122 deg. 45.5 min. W (122.759W)
Depth 10.4 km (6.5 miles)

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