Earthquakes p. 568

1. Earthquakes can cause extreme damage and loss of _______________. Earthquakes are _____________ movements that occur when blocks of rock in Earth move suddenly and release energy.

• mud and life

• life and ground

• trees and stars

The energy is released as seismic _________________- which cause the ground to shake and ________________.

• waves and fault

• waves and tremble

• ground and earthquakes

Earthquake waves can be tracked to a point below ___________________ surface known as the ________________.

• ground's and Earth

• epic center and focus

• Earth's and focus

The focus is a place within Earth along a ________________ at which the first motion of an ____________________occurs.

• focus and elastic rebound

• fault and tornado

• fault and earthquake

Motion along a _________________ causes _______________.

When the stress on the ____________________is great, the rock will rupture and cause an earthquake.

• fault and stress and rock

• stress and fault and focus

• focus and stress and fault

The earthquake releases the ______________________.

Directly above the focus on Earth’s surface is the __________________.

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1. Seismic waves flow outward from the ______________ in all ________________________.

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Most earthquakes occur near the boundaries of ___________________ plates.

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A tectonic plate boundary is where two or more tectonic plates __________________.

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As tectonic plates move, pressure _________________ up near the _____________________ of the plates. These movements break Earth’s _________________crust into a series of faults.

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