Earthquakes (P wave & S waves)

Front

What tool do we use to measure seismic waves during earthquakes?

Back

Seismographs

Front

What are the first waves released during an earthquake?

Back

P waves

Front

What is the rigid outer layer of Earth that moves around Earth's surface?

Back

Lithosphere

Front

If the Earth did NOT have a liquid outer core, how would earthquake waves travel differently?

Back

Shadow zones would not exist.

Front

What types of materials can P Waves move through?

Back

Gas, Liquid, Solid, All of these

Front

What are S waves?

Back

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

Front

What is the difference between P waves and S waves?

Back

P waves are compressional waves that can travel through solids, liquids, and gases, while S waves are shear waves that 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 of an earthquake.

Front

What is a seismogram?

Back

A record produced by a seismograph that shows the arrival times and amplitudes of seismic waves.