Earthquakes and Earth's Structure Assessment

What causes an earthquake to happen?

• Thunderstorms and lightning

• Movement of tectonic plates

• Strong winds underground

• Changes in temperature

What is the outer layer of the Earth called?

• The mantle

• The core

• The crust

• The shell

How many major tectonic plates are there on Earth?

• Five

• Six

• Seven

• Eight

What is the spot directly above where an earthquake starts called?

• The epicenter

• The fault line

• The core

• The tremor point

What percentage of earthquakes happen along the Ring of Fire?

• 50%

• 65%

• 75%

• 80%

What is a smaller earthquake that happens after the main earthquake called?

• A. A tremor

• B. A mainshock

• C. An aftershock

• D. A foreshock

How long do most earthquakes usually last?

• 1-5 seconds

• 10-30 seconds

• 1-2 minutes

• 5-10 minutes

What should you do FIRST when an earthquake starts?

• Run outside

• Stand in a doorway

• Drop to your hands and knees

• Call for help

How much food and water should families have in their emergency kit?

• Enough for 24 hours

• Enough for 48 hours

• Enough for 72 hours

• Enough for one week

Where is the safest place to be during an earthquake?

• Near a window

• Under a sturdy table

• In a doorway

• Outside the building