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
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