PSN-L Email List Message

Subject: Re: Geophone info. needed
From: Larry Cochrane cochrane@..............
Date: Wed, 15 Aug 2001 19:28:01 -0700


Geophones are used to record local events. 1 Hz sensors will pick up the P wave of a teleseismic event but other then that they do a bad job at recording the lower frequence waves observed from distant event. See my geophone page here for more information

-Larry Cochrane
Redwood City, PSN

At 09:28 AM 8/15/2001 -0600, you wrote:
I have seen the message about the geophones that are for sale.

My knowledge of geophones is equal to my knowledge of the women

I currently have a homebrew Lehman. With it I can record any
5.8 event world wide. How does one of the geophones compare with
a lehman?

Regards, Dewayne Hill

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Larry Cochrane <cochrane@..............>