PSN-L Email List Message

Subject: RE: Korean nuclar test
From: apsn apsn@...........
Date: Mon, 09 Oct 2006 15:01:27 -0800


Hi all,

Here's a great article on nuke detection and discrimination:
http://www.ldeo.columbia.edu/res/pi/Monitoring/Doc/Srr_2005/PAPERS/03-22.pdf

I went to graduate school with one of the authors (Dodge).

Bob Hammond
Public Seismic Network - Alaska
http://apsn.awcable.com


At 07:36 AM 10/9/2006, you wrote:
>According to the news, the US has not confirmed that a nuclear device was
>exploded, only that the event was equivalent to a large amount of TNT, but
>below the kilo-ton level, a normal measurement for nuclear explosions.
>
>Does anyone in the PSN group have any thoughts about the different in
>seismic signatures between a chemical and nuclear explosion.  I am wondering
>about the buildup of pressure that would generate the initial P-wave, and
>any differences in P-wave form that would be present between the chemical
>and nuclear explosions.  Also, how does the rate of expansion on the shock
>wave compare between chemical and nuclear explosions.
>
>Bob Hancock
>
>
>
>
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Bob Hammond
Public Seismic Network - Alaska
http://apsn.awcable.com

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