PSN-L Email List Message

Subject: Re: Atmospheric Pressure
From: "tdick" dickthomas01@.............
Date: Wed, 15 Oct 2003 13:12:27 -0500

There was an incident along the New Madrid fault -- southern Illinois -- in
the late sixties or early seventies (I don't have the details right off the
top of my head) that occurred within an hour or two of the passing a very
severe low which was followed by a very strong, cold high.
----- Original Message ----- 
From: "John Hernlund" 
Sent: Wednesday, October 15, 2003 1:06 PM
Subject: Re: Atmospheric Pressure

> There was an interesting paper in Science some years back that showed a
> fairly convincing correlation between certain wavelength atmospheric
> disturbances (harmonic order in the 20s or so) and a seismically
> detectable excitation in the Earth at the same wavelengths. Another
> paper in Nature showed annual modulation of Landers aftershocks with
> activity peaking in September. I think there is pay dirt there, but
> I've not followed the developments...some times these claims are even
> retracted after further analysis and thought. Some current paradigms on
> seismicity, e.g. chaos theory, might suggest that every little factor
> can have an effect on seismicity (like the butterfly effect).
> Here are the refs:
> Gao, S.S., P.G. Silver, A.T. Linde, and I.S. Sacks, Annual Modulation
> of Triggered Seismicity Following the 1992 Landers Earthquake in
> California, Nature, vol. 406: 500-504, Aug. 3, 2000.
> Kiwamu Nishida, Naoki Kobayashi, and Yoshio Fukao, Resonant
> Oscillations Between the Solid Earth and the Atmosphere, Science 2000
> March 24; 287: 2244-2246.
> Cheers!
> John
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