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34 Cards in this Set
- Front
- Back
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Plates that collide |
Convergent |
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Plates that move apart |
Divergent |
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Movement of the ground that occurs when rocks inside earth pass their elastic limit, break suddenly, and experience elastic rebound. |
Earthquake |
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Point on earths surface directly above an earthquake focus. |
Epicenter |
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Magma oozing out of cracks in earths surface. |
Fissure |
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Point inside earth where movement is first felt and energy is released. |
Focus |
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Shield volcanoes are made up of thick layers of _______? |
Lava |
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Earth's crust and upper most mantle make up the ______________? |
Lithosphere |
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Measures the amount of structural and geological damage it causes; measures intensity. |
Modified Mercalli Scale |
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Tension forces |
Normal fault |
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The lithosphere is broke up into 13 large sections called_______? |
Plates |
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Heat rising with earth causes earths __________ to move. |
Plates |
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Seismic wave that causes particles of rocks to vibrate in the same direction is moving. |
Primary Wave |
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Compression forces |
Reverse fault |
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Based on measurements of amplitude. |
Richter Scale |
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Long crack that is formed by plates moving apart. |
Rifts |
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Seismic waves that causes rocks to vibrate at a right angle. |
Secondary Waves |
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Scientists record earthquake waves on a ____________? |
Seismograph |
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Sheer forces. |
Strike-Slip-Fault |
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Does most damage? |
Surface Waves |
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Slowest moving and does most damage. |
Surface Waves |
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Produces the forces that forms volcanoes and causes earthquakes. |
Tectonic plate motion |
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Boundary where plates grind against each other. |
Transform plate boundary |
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A seismic sea wave |
Tsunami |
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After the 1995 eruption of Soufrière Hills volcano, more than half of Montserrat was converted to _____________? |
A) desert B) forest C) wasteland D) none of the above |
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Strike-Slip faults are caused by _______ forces? |
A) sheer B) compression C) divergent D) volcanic |
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Tsunamis are caused by _______? |
A) rocks B) earthquake motion on the ocean floor C) volcanoes D) none of the above |
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Molten rock beneath Earth's surface is called _______? |
A) lava B) rocks C) fire D) magma |
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Thinner, easy flowing lavas are rich in _________? |
Iron and magnesium |
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Sticky, thicker lavas are? |
Silica rich |
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Formed by layers of lava and tephra, have violent eruptions, steep sided. |
Composite Volcano |
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It's broad, erupts with thin basaltic lava. |
Shield Volcano |
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At a transform play boundary, plates_________? |
Grind past each other |
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At a divergent plate boundary, plates ________? |
Separate |
