PSN-L Email List Message

Subject: earthquake p and s wave fracturing ?
From: =?ISO-8859-1?Q?J=F3n_Fr=EDmann?= jonfr500@.........
Date: Mon, 20 Feb 2006 00:57:42 +0000

Hi all

This morning i did recorod a earthquake that was a 3.0ML based on early
resaults, it problay is larger in size then the automatic resaults
indicate. However, i have noticed something strange about this
earthquake. This earthquake has a energy componment down to 2Hz and down
to 1Hz, however i just don't recorod that frequancy (1Hz) that low good
with my geophone. There also appears to be sometype of a fraction in the
earthquake p and s waves. It appears more in the p wave, but is also
visable in the s wave. This might be becose there is a large volcano
between my location and where the earthquake did happen, i am not sure
about that however.

The files are here.

They are named Ml3 189km from Hvammstangi, Iceland, Vatnajökull

I think that this might indcate that there is something in the making in
the area where this earthqauke did happen. But the area is inside a
volcano fissure swarm. The volcano in questions is named Bárđarbúnga
(Bárdarbunga), here are info about it.

Those volcanos are in between my location and where the earthquake did
happen. - Hofsjökull -

I just wonder why this is, that's all.

Jón Frímann Jónsson


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