Hi

I don't plan to live in my current area but for few more years. I also
don't plan to build a lechman type of sensor yet. So I don't need to
have it large. 


> Is Environmental Stability (temperature & humidity) within the vault
> an issue?

I don't think it is going to be a problem inside the vault. Since I need
to place it at least 2 meters below the surface (if I can even get that
deep), becose of the winter frost where I live.

Regards.
-- 
Jón Frímann
http://www.jonfr.com
http://www.simnet.is/jonfr500/earthquake/

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