The following program provides an excellent representation of how =
seismic
waves travel through and around the globe. Watch the propagation of the
waves and you should be able to answer your own question.

Go to:
http://www.geol.binghamton.edu/faculty/jones/jones.html

Scroll down to: "Seismic Waves: A program for the visualization of wave
propagation" (About 1/2 way down the page).

Download seiswave.readme and SeismicWavesSetup.exe.

Read the readme file and then Run the setup program.

When the installation is finished, run the animation and select the =
Sumatra
Quake. After it has finished with one quake, the program moves on to
another.

According to Dr. Jones' site, "It is possible to add new events by using =
the
Wilbur II facility at the IRIS Electronic Bulletin Board"

Regards,

-Tim-

Timothy Carpenter, P.E., Pres.,
GeoDynamics Consultants, Inc.
5043 Whitlow Ct.
Commerce Twp., Mi 48382
248-363-4529 (voice & fax)
248-766-1629 (cell)
geodynamics@........... (primary)
geodynamics@....... (secondary)


-----Original Message-----
From: psn-l-request@.............. [mailto:psn-l-request@............... =
On
Behalf Of Jan Froom
Sent: Thursday, February 23, 2006 11:07 AM
To: psn-l@..............
Subject: Mozambique 7.5 quake

We recorded it in Gilroy CA at South Valley Middle School.=20
http://www.gusd.k12.ca.us/southvalley/seismic

For those of us in California, Mozambique is on the opposite side of the =

earth... so when we receive the seismic waves... from which direction=20
are they coming and if from multiple paths, why don't they interfere or=20
cancel each other out?
Jan in Gilroy....

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Public Seismic Network Mailing List (PSN-L)


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