Chapter 9 Crossword

Vibrations in the ground that result from movement along breaks in Earth's lithosphere
A break in Earth's lithosphere where one block of rock moves toward, away from, or past another
Energy that travels as vibrations on and in Earth
Waves that originate where rocks first move along the fault
The location on Earth's surface directly above the earthquake's focus
Also called P-waves. Cause particles in the ground to move in a push-pull motion.
Also called S-waves. Cause particles to move up and down at right angles relative to the direction the wave travels
Cause particles in the ground to move up and down in a rolling motion
Scientists that study earthquakes
Measures and records ground motion and can be used to determine the distance seismic waves travel
A graphical illustration of seismic waves
A vent in Earth's crust through which melted, or molten rock flows
Molten rock below Earth's surface
Molten rock that erupts onto Earth's surface
Volcanoes that are not associated with plate boundaries
Common along divergent plate boundaries and oceanic hot spots. Are large areas with gentle slopes of basaltic lava
A large, steep-sided volcanoes that result from explosive eruption of andesitic and rhyolitic lava and ash along convergent plate boundaries
Are small, steep sided volcanoes that erupt gas rich, basaltic lava
Tiny particles of pulverized volcanic rock and glass
A liquid's resistance to flow