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earthquakes (vocabulary (Earthquake (are the vibration in the ground that…
earthquakes
Big questions
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what is an earthquake?
are the vibration in the ground that results from movement along breaks in Earth's lithosphere. These breaks are called faults.
vocabulary
Earthquake
are the vibration in the ground that results from movement along breaks in Earth's lithosphere. These breaks are called faults
fault
is a break in Earth's lithosphere where one block of rock moves toward, away from, or past another.
seimic wave
these waves originate where rocks first move along the fault, at a location inside Earths called the focus.
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primary wave
also called p-waves cause particles in the graund to move in a push-pull motion similar to acoiled spring.
secondary wave
also called s-waves, are slower than p-waves. They caus eparticls to move up and down at rihgt angles relative to the direction the waves travels
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surface wave
cause particles in the ground to move up and down in a rolling motion, similar to ocean waves.
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