Monday, October 17, 2011

Re: [Geology2] Swarm of earthquakes around Mount Rainier, Richland | KING5.co...



It erupted quite memorably in 2004... about September as I recall... about the time of the M6.0 Parkfield Quake.

On Mon, Oct 17, 2011 at 7:57 PM, <alva_the_a@yahoo.co.id> wrote:
 

It has been 27 years since St. Helen's eruption..will Rainier erupt in cataclysmic eruption?

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Date: Mon, 17 Oct 2011 22:50:10 -0400 (EDT)
Subject: Re: [Geology2] Swarm of earthquakes around Mount Rainier, Richland | KING5.co...

 

7 years since Mt. St. Helens erupted?  Hasn't it been more like 27 years?  Wonder where this reporter has been all this time?  Under a rock?
 
Bre
 
In a message dated 10/17/2011 9:14:01 P.M. Central Daylight Time, vic.nospam@gmail.com writes:
 

Are you ready for what could be really be a big one?


Swarm of earthquakes around Mount Rainier, Richland

SEATTLE -- It may not amount to much, like so many times before, but seismologists are paying close attention to a recent swarm of earthquakes on Mount Rainier. 

Data from the Pacific Northwest Seismic Network show at least seven earthquakes in the last two weeks around the mountain.

One of the strongest was last Friday, when a 3.4 magnitude quake struck in the afternoon near Ashford. Earlier that day, a 2.9 magnitude quake shook beneath Mount Rainier.

Thousands of tiny quakes preceed the erruption of Mt. St. Helens seven years ago as magma was being pushed upward from deep below. As they were then, scientists say these quakes are also shallow, but not necessarily a warning sign of anything immediate.

"It helps seeing these types of events over, in my case, decades," said University of Washington seismologist Steve Malone.

Seismologists are also watching Eastern Washington, where there have been at least four earthquakes in the last few days around a small area on the Columbia River just north of Richland.

Coincidentally, a 3.4 magnitude quake struck that area the same day as the Ashford quake near Mount Rainier. However, scientists say the two swarms are not connected.

"We just have to pay attention," said Malone. "Just keep watching it."

More info on the earthquakes can be found here on the Pacific Northwest Seismic Network website: http://www.pnsn.org/req2/

 

 

 


 



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