Re: HOW TO SAVE LIVES IN A QUAKE

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#8862

From: dr. carasso
Date: Tue, 25 Jan 1994 10:07

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stead@seismo.CSS.GOV (Richard Stead) writes:
>carasso@Inference.COM (dr. carasso) writes:
>>An Earthquake travels --what-- about 900 MPH?  The speed of sound in
>Strong shaking arrives at the S wave velocity - about 4 km/s, or about
>9000 mph.  You're off by a factor of ten.

Isn't there a first wave (I think it's called a P wave) that is
non-forceful?  How much before the S wave is the P wave generated?
What speed does it travel at?

-- 

Roger Carasso ______________________GOD IS MY MODERATOR_____
My thoughts are my own and do not represent Inference Corp.
_______________Will betray country for food_________________

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From: carasso@Inference.COM (dr. carasso)
Newsgroups: sci.physics,ca.earthquakes
Subject: Re: HOW TO SAVE LIVES IN A QUAKE
Date: 25 Jan 94 10:07:21
Organization: West Chico Hills Community College, ESL Lab IV
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In-reply-to: stead@seismo.CSS.GOV's message of 25 Jan 1994 00:26:05 GMT

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