PSN-L Email List Message

Subject: RE: earthquake activity in Indonesia
From: Robert McClure bobmcclure90@.........
Date: Fri, 13 Feb 2009 22:23:17 -0500


Hi Gary,

  To learn more about earthquake wave propagation, please go to the
following link and download "Seismic Waves".

http://bingweb.binghamton.edu/~ajones/
*
*Seismic Waves is a Windows program which illustrates how wave propagate
from an earthquake hypocenter to seismic stations throughout the earth. One
sees waves propagating out from the epicenter on a three-dimensional view of
the earth at the same time one sees waves propagating through a
cross-sectional view of the earth. These two wave propagation views are
synchronized with actual event waveforms so that as a particular phase
arrives at a station, one sees the effect on the seismogram.
*
Subject: RE: earthquake activity in Indonesia
From: "Gary Lindgren" gel@.................
Date: Fri, 13 Feb 2009 16:52:54 -0800

*
------------------------------

About that Indonesian 7.2 earthquake, I didn't pickup the initial P and S
waves, but about 30 minutes or so later I pick up the response showing 16
second sine waves. I assume this is the earth ringing like a bell. The
seismometer is a 23 second Lehman, E-W.
Gary
Hi Gary,

  To learn more about earthquake wave propagation, please go to the following link and download "Seismic Waves".

http://bingweb.binghamton.edu/~ajones/

Seismic Waves is a Windows program which illustrates how wave propagate from an earthquake hypocenter to seismic stations throughout the earth. One sees waves propagating out from the epicenter on a three-dimensional view of the earth at the same time one sees waves propagating through a cross-sectional view of the earth. These two wave propagation views are synchronized with actual event waveforms so that as a particular phase arrives at a station, one sees the effect on the seismogram.

Subject: RE: earthquake activity in Indonesia
From: "Gary Lindgren" gel@.................
Date: Fri, 13 Feb 2009 16:52:54 -0800



About that Indonesian 7.2 earthquake, I didn't pickup the initial P and S
waves, but about 30 minutes or so later I pick up the response showing 16
second sine waves. I assume this is the earth ringing like a bell. The
seismometer is a 23 second Lehman, E-W.
Gary


[ Top ] [ Back ] [ Home Page ]