PSN-L Email List Message

Subject: Re: Digest from 09/30/2004 00:00:17
From: Roger Sparks rsparks@..........
Date: Fri, 01 Oct 2004 09:53:17 -0700


Good morning all,

I am viewing the multiple quakes from Mt. St. Helens on Amaseis which 
can present the data from 24 hours on one screen.

The larger quakes are coming with surprising regularity.  One 
particularly noticeable grouping forms a  slanted line on the screen and 
has an average interval of about 58.4 minutes between events. 

The larger events which can be detected here (about 148 km or 91 miles 
away in Ellensburg, Washington) occur about every 5 to 6 minutes.

I can send a bmp file  which is a screen shot of Amaseis to anyone who 
is interested.

Best,

Roger


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