Earthquakes and waves

Front

What is a crack in the Earth's surface called?

Back

fault

Front

Which type of wave arrives first during an earthquake?

Back

Primary Waves (P-Waves)

Front

What is the location on the Earth's surface directly above where an earthquake begins?

Back

epicenter

Front

What type of data helps prove that the Earth has layers?

Back

seismic data from earthquakes on the other side of the Earth

Front

How much stronger is a magnitude 8.0 earthquake compared to a magnitude 7.0 earthquake?

Back

10 times stronger

Front

What is the term for a large ocean wave caused by an underwater earthquake?

Back

tsunami

Front

What do we call a scientist who studies earthquakes?

Back

seismologist

Front

What are the two main types of seismic waves?

Back

P-Waves and S-Waves

Front

What is the point within the Earth where an earthquake starts?

Back

focus

Front

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

Back

Richter Scale