Earthquakes and Volcanoes

Front

What is shearing in the context of rocks?

Back

Shearing is a type of stress on rocks where rocks slide past each other.

Front

What is a P-wave?

Back

A P-wave is a seismic wave that is always the first to arrive and causes particles of rock to move in a back-and-forth direction.

Front

Where is the focus of an earthquake located?

Back

The focus of an earthquake is located below ground.

Front

What is a pyroclastic flow?

Back

A pyroclastic flow is a mixture of hot rock, ash, and gas that is formed during an explosive volcanic eruption.

Front

What is a hot spot in geology?

Back

A hot spot is an area where material from deep within Earth's mantle rises through the crust and melts to form magma.

Front

What is the difference between a volcano and an earthquake?

Back

A volcano is an opening in the Earth's crust that allows molten rock, ash, and gases to escape, while an earthquake is the shaking of the Earth's surface caused by the movement of tectonic plates.

Front

What are tectonic plates?

Back

Tectonic plates are large sections of the Earth's lithosphere that move and interact with each other, causing earthquakes and volcanic activity.

Front

What is the Richter scale?

Back

The Richter scale is a logarithmic scale used to measure the magnitude of earthquakes.

Front

What is magma?

Back

Magma is molten rock located beneath the Earth's surface.

Front

What is lava?

Back

Lava is molten rock that has erupted onto the Earth's surface.