#Groundwater Table
5 messages in this thread
I, am taking a course in Groundwater Technology and Wells. I, am putting
together a paper on the subject of the watertable and seismic activity. Does
the watertable change in depth, and temperature of the groundwater in the
aquifers in relation to fault lines.
Is there any references, somebody could suggest?
Thanxs Michael
Hi …
Ground water levels, as well as the electrical properties of rocks, do change
just before an earthquake. I have read that within a week before some major
seismic activity, there have been noticeable shifts in both these areas.
I wish I could remember in which books I saw this, but I know it was more than
one, and I know I saw it referenced in books earthquakes, plate tectonics, and
general geology.
There is also some evidence that this little old lady in California has a
geyser in her back yard, and the USGS is studying this geyser because it goes
off with such regularity in connection with earthquakes that it's hard now to
mathematically disqualify the periodicity involved.
So, yep, ground water changes in relationship to seismic activity.
I think if you call the USGS, they can probably put you right on the trail of
the primary research. They're in Golden, Colorado, as is the National
Earthquake Center.
Good hunting!
Hi, Michael–
Welcome to the forum/section!
If one of the geologists here does not volunteer an answer about seismic
effects on groundwater levels and temperatures, you might try again later, as
some people visit less often than messages last here (about a week or so). You
might also try the GO EARTH forum.
–Doug
Doug, Michael, et al.
. . . this comes from a couple of geologists out here in cyberspace, and w/
all due respect & courtesy to the Earth Forum, there is precious little geology
over there.
Don't get me wrong – love the place! (wg) But . . .
Unfortunately we are not seismic specialists and don't have much to offer
Michael for his question. We'd suggest a call to the USGS in Menlo Park or
Denver who will point you to some publications or even on-line experts. Fair
enough?
Cheers,
Scott M.
Mike, Morgaan, Doug & Scott,
>>Groundwater table, geysers, earthquake precursors<<
Evelyn A. Roeloffs, (USGS) has done a couple of papers about groundwater and
earthquakes, faults. They seem pretty good. She was at Cascade Volcanoes
Observ. (Vanc., WA) last year.
She did make some dim remarks about detectability of Electro- Magnetic (ELF)
precursors. And the same about some of the people doing that research.
Her papers are listed in EQBIB.ZIP in Lib 1 of EARTH Forum.