When there is an earthquake, do all fault lines in that area move or crack?
Mar 31, 2010
in
Earthquake Questions
Or do earthquakes start/originate per fault line?
For example, does the San Adreas fault move/crack when there’s an earthquake at the San Fernando/Northridge fault?
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3 comments
dcno02 on March 31, 2010 at 7:00 pm
Fault: crack in the crust of the Earth along which significant movement has occurred
Major faults like the San Andreas are more than one crack. There may be one crack on which most of the motion takes place, but there is also a network of anastomosing branches associated with it. Many of these would have movement during a major earthquake, but some would not because the stress was directed away from them and toward the ones that moved.
http://en.wikipedia.org/wiki/Fault_mechanics
http://en.wikipedia.org/wiki/Geologic_fault
eastwoodelvis on March 31, 2010 at 7:00 pm
Shift is the proper word..
A.Ganapathy India on March 31, 2010 at 7:00 pm
Depending upon the magnitude and condition of lithosphere the length of fracture occur.Some times it triggers earthquakes in adjacent plates also.