Unit 7: Earthquakes and Epicenters

Which point on the map is the epicenter of the earthquake represented?

• A

• B

• C

• D

Label the different types of waves shown in the picture.

a

b

c

surface waves

P-waves

S-waves

Tags

NGSS.MS-PS4-1

Which point indicates the epicenter of the earthquake?

• A

• B

• C

• D

Label each of the following.

a

b

c

epicenter

fault

focus

Another name for the focus of an earthquake is-

• hypercenter

• hypocenter

• center

• epicenter

Tags

NGSS.MS-ESS3-2

What is the primary cause of earthquakes?

• Human activities

• Weather changes

• Plate tectonics

• Volcanic eruptions

Tags

NGSS.MS-ESS3-2

NGSS.MS-ESS2-3

Which scale is commonly used to measure the magnitude of earthquakes?

• Richter scale

• Beaufort scale

• Fujita scale

• Mercalli scale

If the epicenter of an earthquake is 210km from the epicenter and the height of the largest s-wave is 25, what is the magnitude of the earthquake?

• 1

• 3

• 5

• 7

Match the term with the correct defintion.

• focus

• fractures or cracks in the Earth's crust where movement occurs.

• epicenter

• the point on Earth‘s surface directly above where the earthquake originates

• faults

• the point within the Earth where the earthquake begins.

an instrument used to record and measure the motion of the ground during an earthquake

• richter scale

• seismograph

• nonogram

• earthgraph