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Plate Tectonics- Chapter 9

Across
Released energy that travels on earth as vibrations
Measures and records ground motion
Small steep sided volcanoes
Volcanoes not associated with plate boundaries
Also called S-waves
Large steep-sided volcanoes from explosive eruption
Vent in Earth's crust where melted rock flows
Caused by block of rock moving past another
Located directly above the earthquakes focus
Cause particles to move up and down in rolling motion
Down
Scientists that study earthquakes
Volcanoes common along divergent plate boundaries
Graphical illustration of seismic waves
Molten rock below Earth's surface
Liquid's resistance to flow
Cause vibrations in the ground
Also called P-waves
Pulverized volcanic rock and glass
Waves where rocks first move along the fault
Molten rock that erupts onto Earth's surface