4.3 Earthquakes

Front

What are vibrations that travel through Earth carrying energy released by earthquakes?

Back

Seismic waves

Front

What is a force that acts on rock to change its shape or volume?

Back

Stress

Front

What is a break in the rock of Earth’s crust or mantle called?

Back

Fault

Front

What is the main cause of most earthquakes?

Back

Pressure from within the Earth's crust

Front

What is the shaking and trembling that results from the movement of rock beneath Earth’s surface?

Back

Earthquake

Front

What is the point on the Earth's surface directly above where an earthquake originates?

Back

Epicenter

Front

What is the scale used to measure the magnitude of earthquakes?

Back

Richter scale

Front

What type of seismic wave travels the fastest?

Back

Primary waves (P-waves)

Front

What type of seismic wave causes the most damage during an earthquake?

Back

Surface waves (L-waves)

Front

What is the term for the area where two tectonic plates meet?

Back

Plate boundary