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19 Cards in this Set
- Front
- Back
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What is the main cause of volcanoes and earthquake? |
movement in plates |
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What is an anticline? |
upward fold |
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What is an syncline? |
downward fold |
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Why do scientist expect earthquakes to occur at the San Andrea's Fault? |
its a transform boundary |
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How do active volcanoes create more land? |
It erupts, then the lava cools and hardens |
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Why do earthquakes occur often before and during volcanic eruptions? |
plate movement |
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What is an earthquake? |
shaking in Earth's crust |
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What usually occurs on the earth's surface above plate tectonics? |
earthquake and volcanoes |
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Name one thing earthquakes and volcanoes have in common? |
mostly occur at Ring of Fire |
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Compare the process which is occurring at mid-ocean ridge to the process which is occurring at the deep ocean trenches? |
mid-ocean ridges creates rock, but trenches subduct the rock. |
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What stress occurs at a transform boundary? |
shear |
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Whats seismic wave is the first t arrive and travel through a solid, liquid, or gas? |
P waves |
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What do (2) convergent continental plates? |
mountains |
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Which seismic waves are the last too arrive and are the most destructive? |
L waves |
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Which one is a hanging wall? |
a |
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Which one is a foot wall? |
B |
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How were the volcanoes that make up the Hawaiian island formed? |
hot spots |
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Where is the ring of fire? |
around the Pacific plate |
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Why does most earthquakes and volcanoes occur in the ring of fire? |
there are many plate boundaries there |
