PSN-L Email List Message
Subject: Earthquake or not....
From: Thomas Dick dickthomas01@.............
Date: Mon, 10 Dec 2012 10:53:28 -0600
With the holidays and all, this is not the best time of year to bring
this up but maybe somebody who knows is listening. ...so here goes. The
basic question is when is an earthquake an earthquake. I have been
around long enough that I recognize/ignore mine blasting. And should I
also ignore fracking? Well water removal? Injection well activity? What
about this
http://theadvocate.com/home/4538683-125/assumption-sinkhole-burps-vegetation-hydrocarbons?
I believe that earthquakes are defined as the reduction of stress along
breaks/faults in the crust. Isn't that what is happening in almost all
of these cases? Does it really matter than man caused these? Is it the
size? Isn't the activity just as scientifically important as truly
"real" minor earthquakes like those along the New Madrid and San Andes
fault?
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