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21 Cards in this Set
- Front
- Back
magnitude
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The measurement of an earthquakes strength based on seismic waves and movement along faults
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Fold
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A bend in rock froms where part of Earth's crust is compressed
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earthquate
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The shaking that results from the movement of rock beneath Earth's surface
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Anticline
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An upward fold in rock formed by compressionof Earth's crust
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Hanging wall
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The block of rock that forms the upper half of a fault
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footwall
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The block of rock that forms the lower half of a fault
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Seismograph
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A device that records ground movements caused by seismic waves as they move through Earth.
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Tusunami
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A giant wave caused by an earthquake on the ocean floor
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Syncline
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A downward fold in rock formed by compressionin Earth's crust
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Base-isolated building
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A building mounted on bearings designed to absorb the energy of an earthquake
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Fault
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A break in Earth's crust where slabs of rock slip past each other
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Stress
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A forcethat acts on rock to change its shape or volume
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Epicenter
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the point on earth's surface directly abouve an earthquake focus.
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Strike-slip fault |
A type of fault where rocks on either side move past each other sideways with little up-or down motion |
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Aftershock
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An earthquake that occurs after a laarger earthquake in the same area
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Liquefaction
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The process by which an earthquakes violent movement suddenly turns loose soil into liquid mud
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deformation
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A change in the volume or shape of Earth's crust
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Shearing
Tension |
Stess that pushes a mass of rock inopposite directions
Stess that sretches rock so that it becomes thinner in the middle. |
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Focus
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The point beneath Earth's surface whee rock breaks under stress and causes an earthquake.
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Fault Block mountain
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A mountain that forms wher a normal fault uplifts a block of rock
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Normal Fault
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A type of fault where the hanging wall slides downard: caused by tension in the frust
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