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Re: [Phys-l] Earthquakes in Baja

Thanks for everyone that has helped. I took geology a while ago to fulfill my certification requirements, and the class on geological hazards was interesting. However, most of what I learned about earthquakes and what my textbooks said about earthquakes seems to be contradicted by energy analysis and brief comments like this on the USGS website.

I subscribe to the text message and email service from the USGS and get texts about earthquakes over 4 in the US and over a 6 in the world. It is cool and scary and even sad at times, but it is facinating even if no one seems able to sort out what is going on.

Zeke Kossover

----- Original Message ----
From: Robert Cohen <Robert.Cohen@po-box.esu.edu>
To: Forum for Physics Educators <phys-l@carnot.physics.buffalo.edu>
Sent: Wednesday, February 20, 2008 1:55:55 PM
Subject: Re: [Phys-l] Earthquakes in Baja

You may have already seen this, but that site <http://quake.usgs.gov/>,
in their FAQ list, suggests that it is not predictive: "A temporal
increase in earthquake activity does not mean that a large earthquake is
about to happen. Similarly, quiescence, or the lack of seismicity, does
not mean a large earthquake is going to happen." However, they don't
provide any references.

----------------------------------------------------------
Robert A. Cohen, Department of Physics, East Stroudsburg University
570.422.3428 rcohen@po-box.esu.edu http://www.esu.edu/~bbq

-----Original Message-----
From: phys-l-bounces@carnot.physics.buffalo.edu
[mailto:phys-l-bounces@carnot.physics.buffalo.edu] On Behalf
Of Marc "Zeke" Kossover
Sent: Wednesday, February 20, 2008 10:01 AM
To: Forum for Physics Educators
Subject: [Phys-l] Earthquakes in Baja

Howdy-

Over the last couple of weeks, there have been a number of
medium sized earthquakes in Baja California.
<http://quake.usgs.gov/recenteqs/Quakes/quakes.big.htm> Does
anyone know if a series of medium sized quakes increases the
chances of a major earthquake? Are they predictive of anything?

Marc "Zeke" Kossover
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