PSN-L Email List Message

Subject: Re: Gas monitoring hardware and gravity monitoring
From: =?ISO-8859-1?Q?J=F3n_Fr=EDmann?= jonfr@.........
Date: Tue, 02 Apr 2013 00:11:08 +0200


Hi João,

Thanks for the informations. The islands that I am looking into moving
to are this.

Pico,
Faial,
Sao Jorge,
Garcoisa,
Flores.

I am not sure yet where I am going to move to yet. But I expect to
travel to this area first to take a look around. But I am looking for
rather small population (no less then 12.000 people) and a area with
ADSL and mobile connection at least.

I want to see if there are any changes in gravitiy before anything
happen. Be that volcanoe or earthquakes. I do not know if it works or
not. I just want to test it too see what it does and to find out.

I hope in time to be able to setup three or four geophones stations
around where I am going to live. I am not sure when I am going to move.
Since I need to be able to afford it first. For that reason. This is
going to take while. But I can at least prepare until then.

As for gas monitoring. I want to keep a eye on the gas output from the
volcano I am going to be living on top of. If that is possible for me
too get such hardware to start with.

If that I is not possible. I am going to find some other way to monitor
the volcano besides with earthquakes.

Best regards,
Jón Frímann.

On mán, 2013-04-01 at 11:56 +0000, João Fontiela wrote:
> Dear Jón
> 
> I born and grow up in the Azores. I'm PhD student on earthquake engineering with strong background on volcanology. 
> 
> In the Azores volcanic gases are concentrated on some areas such as Furnas, Rib.ª Grande Caldeiras, both in S.Miguel island, Furnas do Enxofre on Terceira Island and Furna do Enxofre on Graciosa Island. Most of volcanic gases are CO2 but sometimes some SO2 (or other S products). The area with hazard for human life is Furna do Enxofre in Graciosa, because SO2 emanations are in a cave that is visitable. Nevertheless the cave is monitoring in continuous.
> 
> About gravity monitoring is not a suitable technique to monitoring volcanoes … unless you have a good quantity of resources available (people and money). Micro-gravity is the technique suitable to survey active volcanoes  and it's expensive because the survey involves repeated measurements of gravity change and deformation at a network of stations in and around the active crater or caldera.
> 
> Feel free do ask anything about the Islands. 
> 
> Best regards,
> João Fontiela
>  
> 
> A 31/03/2013, às 02:59, Jón Frímann  escreveu:
> 
> > Hello,
> > 
> > In few years time I am going to move to the Azores Islands. I do not yet
> > know for sure where I am going to move. But not the most populus islands
> > in the Azores Island group. I am now just checking the islands out and
> > checking out the local volcanes and areas with Google Earth or Google
> > Maps.
> > 
> > I am wondering where I can buy gas monitoring hardware. Since I am going
> > to be living in top of or close to a volcano. This might be useful if
> > there is a volcano eruption after I move.
> > 
> > I also like to have gravity monitoring hardware so I can see if anything
> > changes in the case of volcano eruption.
> > 
> > Thanks for the help.
> > 
> > Best regards,
> > Jón Frímann.
> > 
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