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Subject: exact frequencies for arrival of different seismic waves ??
From: "Geoff" gmvoeth@...........
Date: Thu, 26 Jan 2006 20:29:31 -0700


Can anyone tell me ?

Are there exact frequencies for the first
arrival time of P and S waves ?

I have only seen ranges of frequencies.

If I could pin down exact frequencies I could
make a summation of maybe three narrow band pass
filters with a relatively high Q to look for
each of these waves.

I suspect the ground may behave in a
predictable fashion with the leading edge
of a wave train.

Has anyone ever researched this in any depth
with test equipment that can show reality ?
I know for a fact that the government has
incredible test equipment because I have seen
some of it but not that which is designed
for geological work.

I have seen charts showing ranges of freqs
but here I am only interested in exact
frequencies or slew rates of the first
time of arrival and not the train that follows.

If you are looking for seismic waves
created by nuclear explosions, what
would you be looking for ?


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