Return-Path: Received: from mtain-df02.r1000.mx.aol.com (mtain-df02.r1000.mx.aol.com [172.29.64.214]) by air-me07.mail.aol.com (v129.4) with ESMTP id MAILINME071-8bb84d34068d212; Mon, 17 Jan 2011 04:06:21 -0500 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-df02.r1000.mx.aol.com (Internet Inbound) with ESMTP id 7937A38000097; Mon, 17 Jan 2011 04:06:20 -0500 (EST) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Pel1D-0000TH-Vd for rs_out_1@blacksheep.org; Mon, 17 Jan 2011 09:04:55 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Pel1D-0000T8-6m for rsgb_lf_group@blacksheep.org; Mon, 17 Jan 2011 09:04:55 +0000 Received: from thsbbfxrt02p.thalesgroup.com ([192.93.158.29]) by relay1.thorcom.net with esmtp (Exim 4.63) (envelope-from ) id 1Pel1B-00008r-4Y for rsgb_lf_group@blacksheep.org; Mon, 17 Jan 2011 09:04:55 +0000 Received: from thsbbfxrt02p.thalesgroup.com (localhost.localdomain [127.0.0.1]) by localhost (Postfix) with SMTP id 1A97237A73A for ; Mon, 17 Jan 2011 10:04:47 +0100 (CET) Message-ID: <532_1295255087_4D34062F_532_53074_1_92F6B0CB5F307544B1F54305F95265ABD12FA1@API.clb.tcfr.thales> From: Jean-Louis.RAULT@fr.thalesgroup.com To: rsgb_lf_group@blacksheep.org Date: Mon, 17 Jan 2011 10:04:40 +0100 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) X-Spam-Score: 1.7 (+) X-Spam-Report: autolearn=disabled,FORGED_MUA_IMS=1.198,HTML_MESSAGE=0.001,NO_REAL_NAME=0.55 Subject: LF: RE: Re: What has VLF to do with Toads & Earth Quakes ? Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CBB625.92D7F3BC" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=2.0 required=5.0 tests=FORGED_MUA_IMS,HTML_40_50, HTML_FONTCOLOR_BLUE,HTML_MESSAGE,NO_REAL_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false x-aol-global-disposition: G x-aol-sid: 3039ac1d40d64d34068c4b88 X-AOL-IP: 195.171.43.25 ------_=_NextPart_001_01CBB625.92D7F3BC Content-Type: text/plain Hugh One of the purposes of the french satellite DEMETER is to study any VLF perturbations potentially linked to earthquakes; See for example http://www.geodin.ro/EMSEV/scientific%20program.html Asking "demeter earthquakes pdf" to Google will bring you many observations and theories on that subject 73 de Jean-Louis F6AGR _____ From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Hugh M0WYE Sent: Saturday, January 15, 2011 4:22 PM To: rsgb_lf_group@blacksheep.org Subject: LF: Re: What has VLF to do with Toads & Earth Quakes ? Dear Bufo Bufo and group, There are indeed some strange scientific papers about. It seems to me that it would be best to study links between VLF propagation and earthquakes, and between VLF propagation and toad breeding patterns seperately. But the author is clearly interested in any ability to predict earthquakes found in animals. I had not heard of any effect of earthquakes on VLF before, although it is true that there are many factors which affect the ionosphere. The suggestion is not that the earthquake emits a VLF signal, rather that it disturbs the ionosphere, so that VLF signals are no longer reflected across the "sky". The main things which affect the ionosphere are solar radiation, the solar wind and the earth's magnetic field. Of these, the magnetic field seems the strongest contender, I wonder if there are any magnetometer records for the area being studied at the time of the quake? 73 Hugh M0WYE ------_=_NextPart_001_01CBB625.92D7F3BC Content-Type: text/html
Hugh
 
One of the purposes of the french satellite DEMETER is to study any VLF perturbations potentially linked to earthquakes;
 
See for example http://www.geodin.ro/EMSEV/scientific%20program.html
 
Asking "demeter earthquakes pdf" to Google will bring you many observations and theories on that subject
 
73 de Jean-Louis F6AGR
From: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Hugh M0WYE
Sent: Saturday, January 15, 2011 4:22 PM
To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: What has VLF to do with Toads & Earth Quakes ?

Dear Bufo Bufo and group,
There are indeed some strange scientific papers about.
 
It seems to me that it would be best to study links between VLF propagation and earthquakes, and between VLF propagation and toad breeding patterns seperately. But the author is clearly interested in any ability to predict earthquakes found in animals.
I had not heard of any effect of earthquakes on VLF before, although it is true that there are many factors which affect the ionosphere. 
 
The suggestion is not that the earthquake emits a VLF signal, rather that it disturbs the ionosphere, so that VLF signals are no longer reflected across the "sky". The main things which affect the ionosphere are solar radiation, the solar wind and the earth's magnetic field.
Of these, the magnetic field seems the strongest contender, I wonder if there are any magnetometer records for the area being studied at the time of the quake?
73
Hugh M0WYE
 
 
------_=_NextPart_001_01CBB625.92D7F3BC--