Volcanoes and Earthquakes Quiz

Which of these correctly describes the relationship between viscosity and volcano eruptions? (Select TWO )

• High viscosity = explosive eruption
• High viscosity = quiet eruption
• Low viscosity = explosive eruption
• Low viscosity = quiet eruption

What is the difference between magma and lava?

• Magma is above the crust, lava is beneath the crust
• Magma is beneath the crust, lava is above the crust

What stage of volcano activity can be described as the volcano being "awake" and erupting or about to erupt?

• Active
• Passive
• Dormant
• Extinct

What stage of volcano activity can be described as the volcano being "sleeping" but has the potential to erupt?

• Active
• Passive
• Dormant
• Extinct

What stage of volcano activity can be described as the volcano being "dead" and does NOT have the potential to erupt?

• Active
• Passive
• Dormant
• Extinct

What is the difference between the focus and the epicenter in an earthquake?

• The focus is above ground, the epicenter is below ground
• Both the focus and epicenter are above ground
• The focus is below ground, the epicenter is above ground
• Both the focus and epicenter are below ground

Which type of seismic wave is the MOST dangerous?

• Primary Waves
• Secondary Waves
• Surface Waves

What do we call earthquakes that occur in the MIDDLE of the plate?

• Interboundary
• Intraboundary
• Interplate
• Intraplate

At convergent plate boundaries, what causes volcanoes to form?

• Subduction
• A Rift Valley
• Hot Spots

What is it called when an explosive eruption throws out a mixture of hot gasses, ash, cinder, and bombs?

• Lava Bombs
• Supervolcano Eruption
• Pyroclasic Flow
• Fissure