Earthquakes

Earthquakes happen every day. Most are too small for humans to notice.

• True

• False

Tags

NGSS.MS-ESS3-2

What is an earthquake?

• When the earth causes an upward thrust in the epicenter.

• When the earth moves up and down along the ocean floor.

• When vibrations in the ground result from breaks in Earth's crust caused by tectonic plate movement.

• None of the above

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

Earthquakes most commonly occur:

• in the middle of oceans

• along coastlines

• along tectonic plate boundaries

• all of the answers

Tags

NGSS.MS-ESS3-2

Faults are breaks that occur when rocks:

• move toward each other

• away from each other

• past each other

• all of these

This type of fault occurs when two blocks of  rock slide horizontally past each other in opposite directions.

• strike slip

• reverse

• normal

• transverse

This type of fault occurs when forces two blocks of rock apart.

• strike slip

• normal

• reverse

• divergent

This fault occurs when forces push two blocks of rock together. 

• strike slip

• normal

• reverse

• convergent

Tags

NGSS.MS-ESS2-2

The focus of an earthquake is

• The point below Earth's surface where rock first breaks
• The closest seismic station
• The place where the greatest damage occurs
• A fault

Tags

NGSS.MS-ESS3-2

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

• True

• False

When an earthquake occurs seismic waves are sent out in all directions.

• True

• False

Tags

NGSS.MS-PS4-2