earthquakesgreenspun.com : LUSENET : Introductory Geology, Oswego State : One Thread
Destructive earthquakes sometimes occur within plates, far from the plate boundaries, why is this
-- charlie zambito (firstname.lastname@example.org), April 23, 2001
when rocks on either side of the fault ruptures, the force travels outward in waves. These waves of motion, which pass through the earth while spreading out from the point of the fault rupture, are what we feel on the surface as an earthquake.
More information at: http://www.exploratorium.edu/faultline/earthquakescience/eqscience4.ht ml
-- Mike Porter (email@example.com), April 24, 2001.
Earth quakes produce shockwaves. Shock waves are the things we fell they travel a long distace from were they are produced. An earth quacke is like somtimes a nuclear bomb going off.
-- greg lattimore (firstname.lastname@example.org), May 01, 2001.
The waves that are emitted from an earthquake shake areas of rock that are miles away, this can have a very devistating effect especially in areas that are near an ocean or other large body of water. Tsunami's can form, killing many people with waves that can exceed 100 ft. Check out http://www.aeic.alaska.edu/Input/lahr/taurho/eqeffects/eqtsun.mov for a diagram of this.
-- Dan Lake (email@example.com), May 03, 2001.
Earthquakes emit various waves from its epicenter. These P- and S- waves travel through the ground although S-waves cannot travel through liquid. The main destruction of an earthquake is caused by the force of these waves.
-- Anonymous (firstname.lastname@example.org), January 14, 2002.