Yellowstone Supervolcano Eruptions Overview

The video explores Yellowstone's underground magma system, highlighting the magma chamber and plume. It discusses the potential dangers of the plume liquefying and the monitoring efforts by scientists. Historical eruptions are examined, showing their massive impact on the landscape. The spread of ash from these eruptions is compared to the 1980 Mt. St. Helens eruption, emphasizing the greater magnitude of Yellowstone's eruptions. Despite the past violence, the caldera is now covered by forests, concealing its history.

What is the primary component of the magma chamber beneath Yellowstone?

• Liquid magma

• Solid rock with potential to liquefy

• Water

• Sand

How fast is magma rising through the plume into the magma chamber?

• 1 inch a year

• 4 inches a year

• 3 inches a year

• 2 inches a year

What is a potential danger associated with the magma plume beneath Yellowstone?

• It might cool down completely

• It could dry up

• It might liquefy and move faster

• It could cause earthquakes

How many major eruptions has the Yellowstone supervolcano had in the past?

• Two

• One

• Three

• Four

What happened to entire mountain ranges during some of Yellowstone's large eruptions?

• They were covered in lava

• They fell into the ground and disappeared

• They remained unchanged

• They were pushed upwards

Where has ash from Yellowstone's past eruptions been found?

• Only in Yellowstone

• In the Pacific Ocean and Gulf of Mexico

• Only in the United States

• Only in Canada

How does the magnitude of Yellowstone's eruptions compare to Mt. St. Helens?

• Less than Mt. St. Helens

• Greater than Mt. St. Helens

• No comparison available

• Equal to Mt. St. Helens

What currently covers the caldera from Yellowstone's last eruption?

• Ash

• Water

• Forests

• Lava

What has smoothed over the caldera from the last eruption?

• Earthquakes

• Rain

• Wind

• Glaciers

What conceals the scars of the Yellowstone caldera today?

• Deserts

• Forests

• Lakes

• Mountains