Volcanoes and Earthquakes

What is the shaking of the Earth’s crust caused by a release of energy?

• Earthquake
• Epicenter
• Fault
• Plate

What is mostly likely the cause of an earthquake?

• stress due to movement in Earth's crust
• gravitational variation due to Moon's orbit around Earth
• temperature variation due to Earth's orbit around the Sun
• rotational imbalance due to changes in Earth's poles

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

• Tectonic plates

• Subductions

• Earthquakes

• Convergents

What type of boundary is shown in the diagram?

• Divergent

• Convergent

• Transform

• Transdermal

What type of boundary is shown in the diagram?

• Divergent

• Convergent

• Transform

• Subdermal

What type of boundary is shown in the diagram?

• Divergent

• Convergent

• Transform

• Prodigent

The Richter scale measures:

• the amount of radon gas released
• the movement of plates
• the strength of an earthquake
• the weight of tectonic plates

An instrument that detects and measures earthquakes is a 

• seismogram
• focus seismic map
• focus
• seismograph 

A  line of volcanic activity that surrounds the Pacific Ocean basin is the 

• Ring of Fire
• Aleutian Islands
• Hawaiian Islands
• Caribbean Islands

Before lava reaches the surface it is called

• rock
• magma
• volcanic ash
• liquid fire