Earthquakes and Volcanoes

Front

Where are earthquakes and volcanoes most likely found?

Back

At plate boundaries.

Front

What is the focus of an earthquake?

Back

The focus of an earthquake is below ground.

Front

What type of volcano has gently sloping sides?

Back

A shield volcano.

Front

How many seismic stations are needed to locate the epicenter of an earthquake?

Back

A minimum of 3 seismic stations.

Front

What is the tracing of an earthquake's motion created by a seismometer called?

Back

Seismogram.

Front

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

Back

Epicenter.

Front

What instrument measures the intensity of seismic waves?

Back

Seismometer.

Front

What type of volcano is characterized by steep slopes and explosive eruptions?

Back

Composite volcano.

Front

What is the process called when tectonic plates move apart?

Back

Divergence.

Front

What is the molten rock beneath the Earth's surface called?

Back

Magma.