RCF - So Close
Posted by Petra on November 23, 2005 at 09:45:01:

Hi All,

Don and I often harp about the Rodgers Creek Fault and little by little interesting quakes pop up, like the one which occurred this morning. (see below) This quake occurred probably less than a mile from the location of the twin October 5.5/5.6 1969 quakes and I believe it is the first earthquake there which was a near 3.0 in ages.

As I'm home for a few extra days this week from pulling a back muscle during a turkey altercation, I decided to go to the store at the north end of town yesterday afternoon. As I approached all I could think about was the fault scarp which is just a few more blocks up the road from the store and boy I wanted to go over there. But the traffic was nightmarish and I thought I'd have a problem getting a parking space, so I nixed the idea. Anyway, the fault scarp is within eyeball distance of Kaiser Hospital and about 1/4 mile from Sutter Hospital. So if the RCF gave up a 6.0 near there we would have serious problems.

I believe David Schwartz of the USGS is right. This major sleeper over here is waking up and twice of late, very close to home. Maybe I will get to say Wahoo one of these days....Petra

A microearthquake occurred at 6:46:26 AM (PST) on Wednesday, November 23, 2005.
The magnitude 2.7 event occurred 4 km (2 miles) NW of Santa Rosa, CA.
The hypocentral depth is 6 km ( 4 miles).

--------------------------------------------------------------------------------

Magnitude 2.7 - duration magnitude (Md)
Time Wednesday, November 23, 2005 at 6:46:26 AM (PST)
Wednesday, November 23, 2005 at 14:46:26 (UTC)
Distance from Santa Rosa, CA - 4 km (2 miles) NW (323 degrees)
Larkfield-Wikiup, CA - 4 km (3 miles) SSE (152 degrees)
Windsor, CA - 10 km (6 miles) SE (140 degrees)
Sebastopol, CA - 12 km (7 miles) NE (45 degrees)
San Francisco City Hall, CA - 83 km (51 miles) NNW (341 degrees)

Coordinates 38 deg. 28.5 min. N (38.475N), 122 deg. 43.8 min. W (122.731W)
Depth 6.1 km (3.8 miles)
Location Quality Good


Follow Ups:
     ● Re: RCF - So Close  - Cathryn  19:09:11 - 11/23/2005  (30966)  (0)
     ● Re: RCF - So Close  - Don in Hollister  13:03:49 - 11/23/2005  (30933)  (1)
        ● No Don, You're Wrong - Petra  15:22:42 - 11/23/2005  (30961)  (1)
           ● Re: No Don, You're Wrong - Don in Hollister  18:52:22 - 11/23/2005  (30962)  (1)
              ● Re: No Don, You're Wrong - Petra  19:03:52 - 11/23/2005  (30964)  (0)