Earthquake

Front

What instrument is used to measure the intensity of an earthquake?

Back

Seismograph

Front

Are S waves faster or slower than P waves?

Back

S waves are slower than P waves.

Front

What natural disaster is caused by the movement of the earth’s plates?

Back

Earthquakes.

Front

Do both P and S waves travel through solids?

Back

True.

Front

What scale is used to measure the intensity of an earthquake?

Back

Richter scale.

Front

What are P waves?

Back

Primary waves that are the fastest seismic waves and can travel through solids and liquids.

Front

What are S waves?

Back

Secondary waves that are slower than P waves and can only travel through solids.

Front

What is the focus of an earthquake?

Back

The point within the Earth where an earthquake originates.

Front

What is the epicenter of an earthquake?

Back

The point on the Earth's surface directly above the focus.

Front

What is a tectonic plate?

Back

A large slab of solid rock that makes up the Earth's lithosphere.