2006-11-09 13:45:02 · 7 answers · asked by juan l 1 in Education & Reference ➔ Homework Help
Different kinds of seismic waves are produced by the deformation of rock materials. A sudden slip along a fault, for example, produces both longitudinal push-pull (P) and transverse shear (S) waves. Compressional trains of P waves, set up by an abrupt push (or pull) in the direction of wave propagation, cause surface formations to shake back and forth. Sudden shear displacements move through materials with slower S-wave velocity as vertical planes shake up and down.
2006-11-09 23:04:01 · answer #1 · answered by white_phant0m 3 · 0⤊ 0⤋
Seismic waves are shock waves travelling through the Earth. Anything that causes such a shock would cause seismic waves. Earthquakes are the major source, but volcanic explosions, meteor impacts, and even nuclear bomb tests will also do it.
2006-11-09 14:05:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels through the earth and is recorded on seismographs.
2006-11-09 14:27:46 · answer #3 · answered by lsutgrfn7 2 · 0⤊ 0⤋
What Is Seismology and What Are Seismic Waves?
... the study of earthquakes and seismic waves that move through and around the earth. ... rock it moves through just like sound waves push and pull the air. ...www.geo.mtu.edu/UPSeis/waves.html
2006-11-09 14:02:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Under Sea volcanic activity caused partly by the earth's plates moving. J~
2006-11-09 13:56:56 · answer #5 · answered by Jenny 2 · 0⤊ 0⤋
Try this source: http://www.geo.mtu.edu/UPSeis/waves.html
It answers a lot of questions about seismic waves!
2006-11-09 13:47:44 · answer #6 · answered by shortlibrarian 2 · 0⤊ 0⤋