[Geysers] Norris = lots of Quakes in US Saturday & Sunday? (Frangos)

[V]

Not only is it interesting how many quakes in 
CA there were that day.. there was also one in 
Alaska which was 6.2

Here's the story on the Study of Alaska earthquakes
and Yellowstone Geysers from June of this year...

http://earthobservatory.nasa.gov/Newsroom/MediaAlerts/2004/2004052717072.html

Were there other obvious disturbances besides 
in Norris on Saturday or Sunday?  

In regards to Greg's mention of the Volcanic
systems... here's a few links to info on the 
Mammoth Mountain and surrounding area 
(in CA).... 

Maps of Long Valley Caldera
and the Mono-Inyo Craters Volcanic Chain
http://lvo.wr.usgs.gov/images/maps/index.html

and
 
http://lvo.wr.usgs.gov/Current_Conditions.html

Updated at 9:00 AM (PDT) on Wednesday, September 22, 2004:

Earthquake activity within and adjacent to Long Valley 
caldera remains low with only one magnitude M=0.9 
earthquake detected and located by the realtime 
computer system since the last update on Sept. 21. 
The event was located to the south of the caldera 
in the Sierra Nevada range.

Elsewhere, the earthquake swarm beneath the Adobe Hill 
18 miles east of Mono Lake continues into day five. It has 
included over 500 earthquakes since its inception shortly 
after midnight on Sept. 18. 

Twenty eight of these have had magnitudes of M=3.0 or 
greater and six have had magnitudes of M=4.0 or greater. 
The two largest earthquakes were of magnitudes M=5.5 
and M=5.4 occurring at 4:02PM and 4:43 PM on the 18th. 
The largest of the most recent events were two magnitude 
M=3.0 earthquakes, which occurred at 10:43 PM on the 
21st and 2:29 AM on the 22nd.


It's always interesting.... 

Vicky


--- Greg Wimpey <gwimpey at mines.edu> wrote:
> The total is now over 600 with quakes continuing at a rate of a few
> an hour.  There were a 5.5 and a 5.4 on 9/18 and a 4.8 on 9/20. 
Perhaps
> Norris has indeed been shaken up.  An interesting speculation is
> whether these quakes are related to the volcanic systems.  I don't
think
> there is any history of volcanism in the immediate area.  For more
info,
> check out http://www.cisn.org/special/evt.04.09.18/






		
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