Front

Scientists who study earthquakes are called

Back

Seismologists

Front

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

Back

Richter scale

Front

Earthquakes under the water can cause _____________.

Back

tsunamis

Front

A city destroyed in 1906 by an earthquake.

Back

San Francisco

Front

Many earthquakes happen along the borders of...

Back

Tectonic Plates

Front

What is an earthquake?

Back

A sudden shaking of the ground caused by the movement of tectonic plates.

Front

What are tectonic plates?

Back

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

Front

What is the focus of an earthquake?

Back

The point inside the Earth where the earthquake starts.

Front

What is the epicenter of an earthquake?

Back

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

Front

What is a tsunami?

Back

A large ocean wave caused by underwater earthquakes.