A rock deformation that is like a stretched rubber band and leads to earthquakes
The point beneath Earth's surface where rock breaks under stress and causes an earthquake.
A seismic wave which causes rock particles to move in a backward rolling and side to side swaying motion; the most destructive earthquake wave.
A force that acts on a rock to change its shape or volume.
The height of a wave's crest.
A scale that rates an earthquake's magnitude based on the size of its seismic waves.
A dense sphere or ball of solid iron and nickel at the center of Earth.
Layer of the earth directly below the crust that is made up of a mixture of elements which makes it soft and plastic-like.
The thin material that makes up the ocean floor.
The boundary between the earth's crust and the upper part of the asthenosphere; seismic waves change speed at this boundary.
The point on the Earth's surface directly above the focus of an earthquake.
A seismic wave that moves rock particles back and forth in the same direction that the wave travels; the first to arrive.
An instrument used to measure horizontal or vertical motion during an earthquake.
To alter the shape of (something) by stress.
The measure of the energy released during an earthquake.
A giant wave caused by an earthquake on the ocean floor.
The liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core.
The soft layer of the mantle on which the tectonic plates move.
The older, thicker, and less dense part of Earth's crust; consists of Earth's land masses.
A break in Earth's crust where masses of rock slip past each other.
The second seismic wave,(transverse wave) whic is a seismic body wave that shakes the ground back and forth (or side to side) perpendicular to the direction the wave is moving. Also called a shear wave.
The printed record of an earthquake's seismic waves produced by a seismograph.
The amount of energy in a light or sound wave, as determined by the wave's amplitude.
A scale (I-XII) that rates earthquakes according to their intensity and how much damage they cause.
The outer layer of the Earth; consists of the continental & oceanic crusts.
The Earth's layer which includes the aesthenosphere and is the LARGEST layer.
The solid, outer layer of the Earth that consists of the crust and the rigid upper part of the mantle.