PSN-L Email List Message
Subject: Re: Sumatra Quake
From: Thomas Dick dickthomas01@.............
Date: Wed, 11 Jan 2012 09:54:37 -0600
I didn't post this quake. It confused me. Did anyone notice an unusual
number of spikes/peaks on their horizontal units (particularly E-W from
Indiana) between the arrival of S and the arrival of LQ? They are on the
USIN units as well as mine? (namely at 2 min after S, and between 19 and
39 minutes-- ending about 8 minutes before LQ predicted arrival) ---
PKP. PP, PPS and even SSS come through well on the vertical ...
frequency of these mystery waves seems to be between .02 and .1 Hz --
another quake????
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