PSN-L Email List Message

Subject: Re: SOLAR ACTIVITY VS. EARTHQUAKES
From: AHrubetz@.......
Date: Sun, 20 Jun 2010 13:30:01 EDT


Yes, putting variable stresses on the Earth may be  likened to the straw 
that broke the camels back.
 
Several years ago, my amigo from  Guatemala, Rolando Benitez and I observed 
and discussed a diurnal rhythm of  pressure variations on our barographs:  
Pressure maxima occurred at  approximately 1000 and 2200 hours and pressure 
minima at roughly 0400 and 1600  hours local time.  We deduced that the 
atmospheric pressure  variations were solar-induced, and that the diurnal  
atmospheric pressure "tides" were primarily excited by the Sun's  heating of the 
atmosphere.  By heating the atmosphere by day and not at  night relative to 
a fixed point on Earth, the cycle generates  atmospheric tides that have 
periods relative to the solar  day.   On a latitude basis, these variations 
should be  greater at the equator since the intensity of the Sun's rays are at 
a maximum  there.
A subsequent review of the literature (S.  Hastenrath,  Climate Dynamics of 
the Tropics, Chapter 2, "Diurnal Waves  of Atmospheric Pressure According 
to Theory") revealed that in theory   ". . There is a 12-hour pressure wave . 
.. . that trails from east to west in  such a way that any location maxima 
are experienced around 10 and 22 hrs, and  minima around 4 and 16 h. local 
time."  His interesting chart on page  10 corresponded to our observations.
 
The NASA EARTH  OBSERVATORY reports that:
"For over two centuries, meteorologists were puzzled  by the observation 
that atmospheric pressure in the tropics peak at 10 a. m. and  10 p.m. nearly 
every day.  In the late 1960's, a theory was proposed that  these surface 
pressure variations result from waves that are generated by the  Sun's heating 
of the upper atmosphere.  The waves, called solar tides,  propagate to the 
ground as they travel around the globe . . .  "
 
There are numerous references on the subject, such as  Wikipedia's 
"Atmospheric Tide," and H. D. Rathgeber's Semi-Diurnal Variations  of Atmospheric 
Pressure and of Cosmic Ray Intensity - Proceedings of the  Physical Society, 
Melbourne, 1950.
 
So, I conclude that yes, solar-induced pressure  variations are occurring 
on Earth, and that it is theoretically possible that  these variations may 
trigger a nascent earthquake.
 
Al Hrubetz
 
 
 
In a message dated 6/20/2010 3:05:54 A.M. Central Daylight Time,  
gmvoeth@........... writes:

You Mean  Like
90% of all people who die have eaten tomatoes
sometime in their  life ??

All I know is Nickle is Magneto Strictive and
Quartz is  Piezo Electric both things will change shape
in the presence of one field  or the other.

Now the earth is a big thing full of both those
and  the sun generates lots of E and B fields ???

Maybe the sun can change  the dimensions
of the Earth slightly based upon those ideas.

Putting  stresses and strains into like
the straw which broke the camels back  ??

geoff

----- Original Message ----- 
From:  
To: 
Sent:  Wednesday, June 16, 2010 4:48 PM
Subject: SOLAR ACTIVITY VS.  EARTHQUAKES


>A friend sent me a portion of a newsletter form  the  Space and Science 
> Research Center, apparently a private  concern out of  Florida.  The 
report dealt 
> primarily with  prediction of agricultural  production vs sunspot 
activity.   
> But what caught my eye was the statement:  "After studying  300-plus 
years 
> of data, an SSRC study also found  decreased  solar activity had an 80.6% 
> correlation with increased volcanic   activity, and 100% correlation with 
> essentially all of the largest U.  S.  earthquakes."
> I had never heard of such an analogy.  Is  this  make believe?
> 
> Al  Hrubetz
>
__________________________________________________________

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To leave this list email  PSN-L-REQUEST@.............. with 
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See http://www.seismicnet.com/maillist.html for more  information.






Yes, putting variable stresses on the Earth ma= y be=20 likened to the straw that broke the camels back.
 
Several years ago, my amigo from= =20 Guatemala, Rolando Benitez and I observed and discussed a diurnal rhythm= of=20 pressure variations on our barographs:  Pressure maxima occurred at= =20 approximately 1000 and 2200 hours and pressure minima at roughly 0400 and= 1600=20 hours local time.  We deduced that the atmospheric pressure= =20 variations were solar-induced, and that the diurnal=20 atmospheric pressure "tides" were primarily excited by the= Sun's=20 heating of the atmosphere.  By heating the atmosphere by day and not= at=20 night relative to a fixed point on Earth, the cycle generates=20 atmospheric tides that have periods relative to the solar=20 day.   On a latitude basis, these variations should be= =20 greater at the equator since the intensity of the Sun's rays are at a maxi= mum=20 there.
A subsequent review of the literature (S.= =20 Hastenrath,  Climate Dynamics of the Tropics, Chapter 2, "Diurnal= Waves=20 of Atmospheric Pressure According to Theory") revealed that in theory&= nbsp;=20 ". . There is a 12-hour pressure wave . . . that trails from east to west= in=20 such a way that any location maxima are experienced around 10 and 22 hrs,= and=20 minima around 4 and 16 h. local time."  His interesting chart on= page=20 10 corresponded to our observations.
 
The NASA EARTH=20 OBSERVATORY reports that:
"For over two centuries, meteorologists were= puzzled=20 by the observation that atmospheric pressure in the tropics peak at 10 a.= m. and=20 10 p.m. nearly every day.  In the late 1960's, a theory was proposed= that=20 these surface pressure variations result from waves that are generated by= the=20 Sun's heating of the upper atmosphere.  The waves, called solar tides= ,=20 propagate to the ground as they travel around the globe . . .=20 "
 
There are numerous references on the subject,= such as=20 Wikipedia's "Atmospheric Tide," and H. D. Rathgeber's Semi-Diurnal Vari= ations=20 of Atmospheric Pressure and of Cosmic Ray Intensity - Proceedings of= the=20 Physical Society, Melbourne, 1950.
 
So, I conclude that yes, solar-induced pressur= e=20 variations are occurring on Earth, and that it is theoretically possible= that=20 these variations may trigger a nascent earthquake.
 
Al Hrubetz
 
 
In a message dated 6/20/2010 3:05:54 A.M. Central Daylight Time,=20 gmvoeth@........... writes:
You Mean=20 Like
90% of all people who die have eaten tomatoes
sometime in the= ir=20 life ??

All I know is Nickle is Magneto Strictive and
Quartz= is=20 Piezo Electric both things will change shape
in the presence of one= field=20 or the other.

Now the earth is a big thing full of both those
= and=20 the sun generates lots of E and B fields ???

Maybe the sun can ch= ange=20 the dimensions
of the Earth slightly based upon those ideas.

P= utting=20 stresses and strains into like
the straw which broke the camels back= =20 ??

geoff

----- Original Message -----
From:=20 <AHrubetz@.......>
To: <psn-l@..............>
Sent:=20 Wednesday, June 16, 2010 4:48 PM
Subject: SOLAR ACTIVITY VS.=20 EARTHQUAKES


>A friend sent me a portion of a newsletter fo= rm=20 the  Space and Science
> Research Center, apparently a priva= te=20 concern out of  Florida.  The report dealt
> primarily= with=20 prediction of agricultural  production vs sunspot activity. = =20
> But what caught my eye was the statement:  "After studying= =20 300-plus years
> of data, an SSRC study also found  decrease= d=20 solar activity had an 80.6%
> correlation with increased volcanic=  =20 activity, and 100% correlation with
> essentially all of the larg= est U.=20 S.  earthquakes."
> I had never heard of such an analogy.&nbs= p; Is=20 this  make believe?
>
> Al=20 Hrubetz
>
_____________________________________________________= _____

Public=20 Seismic Network Mailing List (PSN-L)

To leave this list email=20 PSN-L-REQUEST@.............. with
the body of the message (first lin= e=20 only): unsubscribe
See http://www.seismicnet.com/maillist.html for mo= re=20 information.

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