Volcanoes, Earthquakes, Tsunamis Test Review

based on the test we took on May 11, 2023

If a volcano is flatter and dome shaped what is it classified as?

If a volcano is flatter and dome shaped what is it classified as?

Shield

If a volcano has large depressions in the ground what is it classified as?

Calderas

What type of volcano is Mount Mayon classified as?

Strato

What are Mid-Atlantic Ridges (Hydrothermal Vents) classified as?

Mid-Ocean Ridges

If a volcano appears tall and has steep mountains, what are they classified as?

Strato

What is Mount Bromo Sunrise classified as?

Calderas

What is Mount Mauna Loa classified as?

Shield

If a volcano has underwater chains of the volcanic mountains, what is it classified as?

Mid-Ocean Ridges

Heat melts some of the rock in the Earth’s mantle causing it to turn into _________

Magma

Once Magma escapes through volcanic eruptions and is above the surface of the Earth, it is called ________

Lava

What does the Volcanic Explosivity Index begin at?

(Answer in word form)

Zero

True or False: The Volcanic Explosivity Index (VEI) has no upper limit

True

Where did the most terrible eruption ever witnessed occur in?

Indonesia

When did the most terrible eruption ever witnessed occur?

1815

What is the path that traces between the tectonic plates around the Pacific Ocean and contains 75% of the planet’s volcanoes called?

Ring of Fire

True or False: Most volcanoes are located where tectonic plates meet.

True

True or False: Volcano eruptions can be prevented

False

Define what a tectonic plate is

(*make sure to know this word for word*)

A massive, irregularly shaped slab of solid rock

Where do tectonic plates meet?

Their boundaries

What are the boundaries tectonic plates meet known as?

Plate Margins

Magnitude or Intensity: The total amount of energy released by the earthquake source

Magnitude

Magnitude or Intensity: Can have different values

Intensity

Magnitude or Intensity: An earthquake will only have one of these

Magnitude

Magnitude or Intensity: It changes depending on your distance from the source of the earthquake

Intensity

What are the two largest tectonic plates?

Pacific, Antartic

If an earthquake is measured at an 8, that means it is 100x or 1000x greater than an earthquake measured at a 6.

100x

True or False: There are no inventions to stop earthquakes

True

Where did the biggest earthquake ever recorded happen?

Chile

Name the 3 countries who were also affected by the Chilean earthquake

US, Japan, Philippines

True or False: Earthquakes can be prevented

False

What does Tsunami translate to?

Harbor Waves

What are the 4 main causes of Tsunamis?

Volcanic eruptions, Submarine landslides, Meteorites, Earthquakes

What is the most common cause of Tsunamis?

Earthquakes

True or False: The first wave of the tsunami is always the strongest/largest

False

Where was the largest tsunami (that was caused by an earthquake) ever recorded?

Indian Ocean

How many countries did the tsunami of 2004 reach?

11

The tsunami had an energy equivalent to 21,000 or 23,000 times greater than the atomic bomb dropped on Hiroshima.

23,000

When a tsunami occurs, where should one seek to go?

(Inland or Out to shore)

Inland

When a tsunami occurs, you should move to higher/lower ground

Higher