What Causes Earthquakes?

True or False

An earthquake is caused by the vibration or shaking, of the Earth's crust.

• True

• False

Tags

NGSS.MS-ESS3-2

What is a fault?

• A vibration or shaking, of Earth’s crust

• A break in Earth’s crust along which rocks move

• The point underground where the movement of an earthquake first took place

• The point on the surface of Earth that is right above the focus of an earthquake

Tags

NGSS.MS-ESS3-2

What do scientists use to measure earthquakes?

Select ALL that Apply.

• Mercalli Scale

• Seismograph

• Richter Scale

• Bar Graph

Why are there so many earthquakes in California?

• They are by the ocean.

• They sit on a mountain.

• They sit on the San Andreas Fault.

Tags

NGSS.MS-ESS3-2

NGSS.MS-ESS2-3

What is the point below Earth's surface where an earthquake begins?

• epicenter

• focus

• fault

• core

What is the point on the surface that is right above the focus?

• epicenter

• focus

• fault

• core

Which scale uses Roman numerals to measure the movement and damage that an earthquake causes?

• Richter Scale

• Mercalli Scale

• Seismograph

Which scale uses numbers to measure the movement and damage that an earthquake causes?

• Seismograph

• Mercalli Scale

• Richter Scale

How much damage was caused by the 1994 North ridge earthquake in Los Angeles?

• $6 billion

• $100 billion

• $20 billion

• $1 billion

True or False

Rocks on either side of a fault can only move up and down..

• True

• False