Jerry -

I called Dr. Haydar Al-Shukri today, and he told me the story of water =
in the vault.

The vault was installed while he was working at St. Louis University, =
and he is currently at the University of Arkansas at Little Rock.  The =
wires from the vault to the building were encased in PVC pipes.  The =
seismometer was manufactured by Guralp.  One day the instrument stopped =
working and they investigated as to why.  After checking all the =
instrumentation in the building, they opened up the vault and it was =
filled with water.  It turned out that a tree had fallen down and they =
brought in heavy equipment to remove the tree.  Driving over the buried =
PVC pipe, the heavy vehicle had fractured the PVC pipe........then, =
there was a heavy rain, and water leaked into the broken PVC pipe which =
filled the vault with water.  The vault was emptied and the instrument =
forward to Guralp for repair.

Mystery Solved !!!

Bob Hancock


On May 13, 2010, at 5:53 AM, GPayton wrote:

> Looking at the photographs at  =
http://www.eas.slu.edu/Earthquake_Center/NM/UALR/ualr.pict.html  I =
couldn't help but be surprised at the last photograph.  Water put in the =
vault?  I've never see this before; why?  Anyone explain?
> =20
> Thanks,
> Jerry

Jerry -

I called Dr. =
Haydar Al-Shukri today, and he told me the story of water in the =
vault.

The vault was installed while he was =
working at St. Louis University, and he is currently at the University =
of Arkansas at Little Rock.  The wires from the vault to the =
building were encased in PVC pipes.  The seismometer was =
manufactured by Guralp.  One day the instrument stopped working and =
they investigated as to why.  After checking all the =
instrumentation in the building, they opened up the vault and it was =
filled with water.  It turned out that a tree had fallen down and =
they brought in heavy equipment to remove the tree.  Driving over =
the buried PVC pipe, the heavy vehicle had fractured the PVC =
pipe........then, there was a heavy rain, and water leaked into the =
broken PVC pipe which filled the vault with water.  The vault was =
emptied and the instrument forward to Guralp for =
repair.

Mystery Solved =
!!!

Bob =
Hancock


On May 13, 2010, at 5:53 AM, =
GPayton wrote:

Looking at the photographs =
at  h=
ttp://www.eas.slu.edu/Earthquake_Center/NM/UALR/ualr.pict.html  =
I couldn't help but be surprised at the last photograph.  Water put =
in the vault?  I've never see this before; why?  Anyone =
explain?
 
Thanks,
Jerry

=