Andy,
You might find the article at http://pubs.usgs.gov/fs/fs-096-03/ =
interesting.  It shows some of the work that the USGS is doing using =
water wells in earthquake prediction/analysis.
By the way, the area East of Oklahoma City has been very seismically =
active the past few months, and you can see their online realtime =
monitoring of water wells in that area.  I've seen several instances of =
changes during earthquake activity which are curious.  Just go to =
http://ok.water.usgs.gov  and in the box on the right titled "Quick Link =
to Real-Time Data"  Enter the 15 digit id code into the box.  These are =
352802098191601 or 350748098231101.
Kay Wyatt


  ----- Original Message -----=20
  From: Andrew Little=20
  To: psnlist@.................
  Sent: Friday, November 05, 2010 10:28 AM
  Subject: sensor in a well


  Hi PSN list,
  I have a copy of The Amateur Scientist by C.L. Strong 1960. It is a =
collection of projects and articles from The Scientific American. In the =
Earth Science section are several articles on seismology. It was this =
book that first got me interested in the subject. One article by Elmer =
Rexin describes using a float in a well to detect seismic events.=20
  I happen to have a well under my house, it is cut into the limestone, =
the water surface is 10 Metres below the floor of the cellar. I know of =
one sink-hole on the plateau above the village so It is possible that =
the well could be connected to an aquifer in the limestone hillside. The =
well in the article did have a connection to lake Michigan and so acted =
as part of a giant "U-tube".
  Anyway, the point of all this is to ask if anyone thinks there could =
be an advantage in setting up some form of sensor in the well, and if =
so, have you any ideas?
  Regards,
  Andy





Andy,
You might find the article at http://pubs.usgs.gov/fs/fs-09=
6-03/ interesting. =20
It shows some of the work that the USGS is doing using water wells in =
earthquake=20
prediction/analysis.
By the way, the area East of Oklahoma City has =
been very=20
seismically active the past few months, and you can see their online =
realtime=20
monitoring of water wells in that area.  I've seen several =
instances of=20
changes during earthquake activity which are curious.  Just go to =
http://ok.water.usgs.gov  and in the box on the right titled "Quick Link =
to=20
Real-Time Data"  Enter the 15 digit id code into the box. =
 These are=20
352802098191601 or 350748098231101.
Kay Wyatt
 
 

  
----- Original Message ----- 
  From:=20
  Andrew=20
  Little 
  
To: psnlist@.............. =

  
Sent: Friday, November 05, 2010 =
10:28=20
  AM
  
Subject: sensor in a well
  

Hi PSN list,
I have a copy of The Amateur Scientist =
by C.L.=20
  Strong 1960. It is a collection of projects and articles from The =
Scientific=20
  American. In the Earth Science section are several articles on =
seismology. It=20
  was this book that first got me interested in the subject. One article =
by=20
  Elmer Rexin describes using a float in a well to detect seismic =
events. 
I=20
  happen to have a well under my house, it is cut into the limestone, =
the water=20
  surface is 10 Metres below the floor of the cellar. I know of one =
sink-hole on=20
  the plateau above the village so It is possible that the well could be =

  connected to an aquifer in the limestone hillside. The well in the =
article did=20
  have a connection to lake Michigan and so acted as part of a giant=20
  "U-tube".
Anyway, the point of all this is to ask if anyone thinks =
there=20
  could be an advantage in setting up some form of sensor in the well, =
and if=20
  so, have you any ideas?
Regards,
Andy