Earthquakes/Volcanoes

A break in a body of rock along which one block sides relative to another.

Area in the basin of the Pacific where many earthquakes and volcanic activity occurs.

Fracture where the blocks have moved horizontally.

Tectonic plates move away from each other.

Tectonic plates colliding.

A seismic wave that causes particles of rock to move in a back-and-forth direction.

A seismic wave that causes particles of rock to move in a side-to-side direction.

The point on Earth’s surface directly above an earthquake’s starting point or focus.

The point along a fault at which the first motion of an earthquake occurs.

Scale that defines the magnitude of earthquakes.

A violent volcano eruption.

Volcano eruptions that the lava flows calmly and doesn’t explode.

A volcanic island situated in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung.

Hot spot of magma in the Rocky Mountains that could possibly erupt and cover much of the U.S.

Continental transform fault located in California.

A long, undersea mountain chain that forms along the floor of the major oceans.

A fluid magma volcano lying on the ground.

Volcano with a bowl like crater at the summit.

A many layered volcano that has multiple eruptions.

An area in the mantle from which heat rises as a thermal plume from deep in the Earth