This is all quite interesting.

However I do not understand how magma
which has seperated from its source of
energy deep inside the Earth can be "HEATING UP"

It seems to me that from the time it begins
its bouyant travels melting through the
Earths Crust to reach the surface it
will be cooling all the way.

Maybe what you are saying here is that
the magma chamber is expanding or
something like that.

I do, however, understand the meaning of
increased activity.


Regards;
geoff

----- Original Message ----- 
From: "Jón Frímann" 
To: "PSN-Postlist" 
Sent: Thursday, August 31, 2006 12:58 PM
Subject: Three most active volcanos in Iceland are heating up


> Hi all
>
> According to Icelandic news it appeears that three most active volcanos
> in Iceland are heating up. But that are Grimsvotn (Grimsfjall),
> Myrdalsjokull, Hekla. Volcano named Bardarbunga is also starting to show
> signs of incresed activite, but nothing conclusive yet. Helka has been
> erupting every ten year since 1970, last eruption was in 2000.
> Grimsfjall did last erupt in 2004. Myrdalsjokull last eruption was in
> 1918. Bardarbunga did last erupt in 1903.
>
> When thease volcanos erupts I am problay going to see some of the
> activie on my sensor, how much exacly is unkown to me. I am going to
> record the eruption releated earthquakes for sure (above mag 2.8) when
> the time comes.
>
> Regards.
> -- 
> Jón Frímann
> http://www.jonfr.com
> http://www.simnet.is/jonfr500/earthquake/
>
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