Earthquakes and Tectonic Plates
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Last updated 3:42 PM on 3/7/25
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11 Terms
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Tectonic plates
Large pieces of the Earth's lithosphere that move and interact with each other.
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Convection currents
Circulating flow of molten rock in the mantle caused by heat from the Earth's core.
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Asthenosphere
The semi-fluid layer of the mantle beneath the lithosphere, allowing tectonic plates to move.
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Subduction zone
An area where one tectonic plate sinks under another into the mantle.
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Transform boundaries
2 plates slide past each other
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San Andreas Fault
A transform boundary located in California between the Pacific Plate and the North American Plate.
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Epicenter
point on surface located where plates move
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Built up stress
Energy accumulated in tectonic plates due to their slow movement over time.
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Oceanic ridge
A continuous mountain range formed by tectonic plates pulling apart.
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Magma intrusion
The movement of magma into existing rock formations, often causing tectonic plates to shift.
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Cooling slab
A denser section of oceanic plate that sinks back into the mantle at a subduction zone.
Flashcards (23)