The rigid outer layer of Earth that moves around Earth's surface

Plastic layer of the mantle

Plates slide past each other at this type of boundary

Boundary type in which plates are spreading apart

Plates are coming together at this type of boundary

Wide belt around Earth on the opposite side of the focus that does not receive ANY P or S-waves

The point underground on the fault plane where the break (energy) occurs

This seismic wave can travel through any material

This seismic wave is also called a shear wave

A break in the rock

The instrument that detects and records earthquake waves

When rocks snap back almost their former shapes

The location at the surface of the Earth just above the focus

The recording of an earthquake made by a seismograph

Measures the amount of energy released by an earthquake