Ch. 9 Lesson 2 Quick Vocabulary

Front

What type of wave arrives after primary waves?

Back

Secondary wave

Front

A ________ is a volcano that is not found near a plate boundary.

Back

hot spot

Front

________ are tiny particles of pulverized volcanic rock and glass.

Back

volcanic ash

Front

What is the fastest-moving type of seismic wave that is detected first by seismologists?

Back

Primary wave

Front

What is a break in Earth's lithosphere where one block of rock moves toward, away from, or past another called?

Back

Fault

Front

What is the layer of Earth that is made up of solid rock and is located beneath the soil and water?

Back

Lithosphere

Front

What type of boundary occurs when two tectonic plates move away from each other?

Back

Divergent boundary

Front

What is the term for the point on the Earth's surface directly above the focus of an earthquake?

Back

Epicenter

Front

What is the process called when one tectonic plate is forced under another?

Back

Subduction

Front

What type of wave travels along the surface of the Earth and causes the most damage during an earthquake?

Back

Surface wave