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EARTHQUAKES

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Across
3
movement of the ground caused by the release of energy from a sudden shift of rocks in Earth’s crust.
5
a type of stress that stretches rock and makes it thinner.
6
a force that causes rock to change shape.
9
an instrument that records seismic waves.
10
a small earthquake that precedes a larger earthquake.
11
a giant, fast-moving wave that is caused by an undersea earthquake. Also known as a seismic sea wave.
12
the measurement of the total strength or amount of energy released by an earthquake.
Down
1
a type of stress that squeezes rock, causing it to break or fold.
2
a break in Earth’s crust where movement of rock occurs.
4
a smaller earthquake that occurs after a larger earthquake.
7
the point on Earth’s surface directly above the focus of an earthquake.
8
a type of stress that pushes two adjacent areas of rock in opposite directions.