Volcanic Eruptions Quiz

According to Miles Eldrige of the USGS, what is a "gray" volcanic eruption?

• An eruption that releases gray lava.

• An eruption in which tephra flows slowly and fluidly on Earth's surface.

• A relatively silent eruption.

• One where a large number of animals are killed.

• One in which there is abundant ash, smoke, and gas.

How fast did the ash cloud move east?

• 80 miles per hour

• 150 miles per day

• 800 km per four-hour

• 25 miles per day

• 150 km per day

A geophysical anomaly was detected above the main Yellowstone magma chamber that caused concern for one of the geologists. What was it?

• new river

• mineral deposit

• glitch in the software

• sinkhole

• shallow body of magma

Tags

NGSS.HS-ESS2-1

NGSS.HS-ESS2-3

What percentage of the surface area of the USA is covered by volcanic ash after the eruption (to the nearest 10%)? (The answer should be an integer number only. Do not include the % symbol.)

• 2

• FEMA

• 20

• 80

According to the film, Yellowstone's crater was not recognized until NASA took high altitude photos of the area.

• True

• False

What do the geologists believe is a clear indication of magma movement?

• geyser eruptions

• tsunami waves

• landslides

• swarms of locusts

• harmonic tremor

How large of an addition of subterranean magma under Yellowstone would result in a VEI of 8 after a moderate earthquake, according to Virgil?

• 5 cubic kilometers

• 100 cubic miles

• 250 tons

• 125 cubic kilometers

• 25 cubic kilometers

Tags

NGSS.HS-ESS2-1

NGSS.HS-ESS2-3

According to Miles Eldrige of the USGS, what is a "red" volcanic eruption?

• A progressive outage of electric power

• Have people stay in place and wait for FEMA

• One which lava flows freely from the ground

• One in which there is abundant ash, smoke, and gas

At FEMA: How long before air drops could provide supplies to survivors? (The answer should be a number only in digits.)

Rick Lieberman refers to Yellowstone as:

• 500 pound gorilla

• sneaky skunk

• sleeping giant

• lurking tiger

• restless caldera