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Vibrations in the ground that result from movement along faults
earthquake
Where do most earthquakes happen?
along tectonic plate boundaries
A break in the lithosphere where one block of rock moves towards, away from, or past another
fault
What type of fault forms where two blocks of rock slide horizontally past each other
strike-slip
What causes an earthquake
buildup and release of stress along a fault
energy that travels as vibrations on/in earth
seismic waves
What is the focus of an earthquake?
the area where the rocks first move along a fault inside the earth
What is the epicenter of an earthquake
the location on earth's surface directly above the focus
Which type of seismic waves cause the most damage in an earthquake?
surface waves
What type of seismic waves are the fastest and first to be recorded during an earthquake?
P-waves
What measures the magnitude of an earthquake or the amount of ground motion at given distance
richter scale
What is the name of the fault in California with the greatest earthquake risk?
San Andreas Fault
What tool is used to detect an earthquake
seismometer
