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15 terms

section one science quiz

STUDY
PLAY
elastic limit
how far rocks can bend or stretch before breaking
fault
surface along which rocks move when they break/pass their elastic limit.
How do rocks move on a fault
rocks on one side of a fault move up, down, or sideways in relation to rock on the other side of the fault
Name 3 types of faults
normal reverse strike-up
What happens when rocks break along the fault?
Earthquake
seismic waves
waves generate by an earthquake can move the ground forward and backward, up and down and side to sid.
focus
The point where the forst release of energy occurs. The seismic waves are produced and travel outward from the focus
What are 3 types of seismic waves?
primary waves moves the fastest
secondary
surface- voce slowest.. most destruction
epicenter
point on the Earth's surface directly above the earthquake focus
seismograph
instrument used to register earthquake waves and the time they arrived
seismilogists
scientists who study earthquakes
magnitude
measure of the energy released by an earthquake
richter scale
describes the strength of an earthquake
liquefaction
occurs when wet sil acts more like a liquid during an earthquake
tsunamis
seismic sea wave that begins over an earthquake focus and can be highly destructive when it crashes on shore.