Hi Dave,

I know, and this is why that I did ask about if this would be a problem.
It appears that it won't be a problem. But there is a question how well
this is going to work in Denmark, as houses there are build from bricks
like in most other places in Europe (far as I know anyway).

Regards,
J=F3n Fr=EDmann.

On =FEri, 2011-01-25 at 07:20 +1100, Dave Nelson wrote:
> The problem with elevating the seismometer is that the main thing you are
> recording is the buildings' response to the seismic waves rather than the=
=20
> seismic
> waves themselves.
>=20
>    The further up in the building you are the more the building=20
> sways,  even for distance events.
>=20
> Dave
>=20
>=20
>=20
>=20
> At 06:43 AM 25/01/2011, you wrote:
> >I'm on the third floor, and as you can see by the pictures on my website=
,=20
> >the result is that you'll see all the big earthquakes easily.
> >
> >http://www.brasswings.com/seis.html
> >
> >But of course there is a huge amount of background noise.
> >Wind is the biggest issue.   Windy days can block out pretty much everyt=
hing.
> >You'll also find that the floor probably isnt solid enough to rest a=20
> >seismometer on.     The weight of a human is enough to register full sca=
le=20
> >deflection as the floor sags, when you move from one side of the room to=
=20
> >the other.
> >The best I could do is to lift the sensor box off the floor and press it=
=20
> >up against the wall (in a corner) with the weight of some bricks.
> >If you've got the ability to measure it (with an inclinometer), you'll=
=20
> >also see how much the building sways backward and forward through the=
=20
> >course of the day and it heats up and cools down.
> >
> >But as you say, its worth a try anyway.   You might have a more solid=
=20
> >building than mine.
> >
> >
> >
> >
> >Glenn
> >
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>=20
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>=20
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>=20
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