posted on Feb, 7 2006 @ 05:12 PM
Ok you guys have got the wrong end of the stick here.
The statement that you would expect to see more earthquakes around the 3 gorges in entirely correct. However it is not for the reasons this
"professor" said, I'm not sure what he was a professor of, but it doesn't sound like geology!
Anyway, it is fairly common to get increased seismic activity around major dam projects. The earthquakes tend not to be that big, around 3 - 4 on the
richter scale. However India has undergone some 6.3 quakes that have been related to the filling dam building project in the narmada valley.
The reasons why earthquakes are thought to occur in areas which where previously reasonably tectonically quiet are not related to any of the reasons
previously stated on this thread. It is thought that upon filling of the resevoir behind the dam, the increased water pressure that occurs in
factures and fissures in the rock below and around the mass of water held back by the dam, causes lubrication of fault plains which may have already
have been under tectonic strain. However prior to the building of the dam and filling with water the fault lines did not move due to friction of the