Earthquakes and Volcanoes

Front

The cracks in Earth's crust are called ___________.

Back

faults

Front

Which earthquake wave is the most destructive?

Back

surface waves

Front

Earthquakes under the water can cause _________________________________ .

Back

tsunamis

Front

Name the point underground where the faulting in an earthquake occurs.

Back

focus

Front

An instrument that detects and measures earthquakes is a _____________.

Back

seismograph

Front

What are tectonic plates?

Back

Large sections of Earth's crust that move and interact with each other.

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 magma?

Back

Molten rock located beneath the Earth's surface.

Front

What is lava?

Back

Magma that has reached the Earth's surface.

Front

What are P waves?

Back

Primary waves that are the first to arrive during an earthquake and can travel through solids and liquids.