PSN-L Email List Message

Subject: Re: T wave
From: "Geoffrey" gmvoeth@...........
Date: Mon, 20 Jul 2009 09:37:53 -0700

I believe this is what I saw too.

----- Original Message ----- 
From: "Dale Hardy" 
To: "PSN" 
Sent: Sunday, July 19, 2009 4:43 PM
Subject: T wave

The recent M7.8 New Zealand EQ produced " T " waves which showed up very strongly on my geophone.
"T" phase & is seen for big events - it is transmitted through the ocean water, rather than through the rock below  - hence it is 
slower  - only seen for events under oceans ( & probably have to be shallow as well)




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