Earthquakes

What causes an Eartquake?

• 
  Waves in Earth's oceans.

• 
  

  Earth's plates moving away from each other.

The strength and size of an earthquake is measured using the ..........

• 
  Seconds

• 
  Richter Scale

• Ruler

• Thermometer

What is the primary cause of an earthquake?

• Volcanic eruption

• Friction between tectonic plates

• Heavy rainfall

The weakest Earthquake measure a .......

• 10

• 5

• 1

• 3

Earthquakes that measure 10 on the Richter Scale are very ...

• 
  rare

• 
  common

What is the difference between a Plate boundary and a Fault?

• A plate boundary makes volcanoes and a fault makes mountains.

• 
  A plate boundary is where any two plates touch and a fault is where any two moving plates meet.

Where do most earthquakes occur?

• on continental crusts

• 
  on oceanic crusts

• 
  at plate boundaries

• at rock deformations

How do convergent plates move?

• 
  They pull away from each other.

• 
  They slide by each other.

• 
  It depends, sometimes they move close to each other, sometimes they move far apart.

• 
  They move to connect to each other.

______ are the vibrations of the Earth produced by the rapid release of energy in the lithosphere.

What are the puzzle pieces of the Earth's surface called?