Earthquakes

Front

What is the point below the surface of the Earth where the rock breaks and causes an earthquake?

Back

focus

Front

How many seismograph stations are needed to pinpoint an epicenter?

Back

3

Front

Each level in the ________________ scale is a rating of the damage suffered during an earthquake.

Back

Mercalli

Front

This is a region in Earth's crust that is broken and where movement occurs.

Back

Fault

Front

The strength of an earthquake is known as the

Back

magnitude

Front

The point on the Earth's surface right above the focus of an earthquake is known as the

Back

epicenter

Front

The __________ scale rates the total energy released by an earthquake.

Back

Moment Magnitude

Front

What type of seismic wave is the slowest, but causes the most damage?

Back

Surface waves

Front

Which seismic waves are used to find the epicenter of an earthquake?

Back

Primary and Secondary waves

Front

This scale rates the size of the seismic waves.

Back

Richter