United States
Global
Terms
Formation
Volcanic Hazards
100

I am a supervolcano in the United States, who am I? 

Who is Yellowstone?

100

According to the textbook, about how many active volcanoes are there in the world?

What is 500?

100

A volcano that has 'recently' erupted is

What is active?


100

Volcanoes form on what part of Earth's crust

What are tectonic plates?

100

This fluid emerges rapidly when a volcano erupts 

What is lava?

200

The most active volcano is located in this state

What is Hawaii?

200

The highest population densities at risk are in these two regions of the world


 What are south-east Asia and Central America?

200

An active volcano that has not recently erupted is

What is dormant?


200

This is the fluid material that volcanoes are formed from

What is magma?


200

Dangerous clouds of hot gases and materials such as volcanic fragments, crystals, ash, pumice and glass shards

What is pyroclastic flow?

300

Most volcanoes in the US are located in this state

What is Alaska?

300

Indonesia is located at the junction of this number of tectonic plates

What is three?

300

A volcano that is not likely to erupt again is

What is extinct?

300

This type of volcano is located in the zones of the Earth’s crust where one tectonic plate is thrust and consumed beneath another

What is a subduction volcano

300

This volcanic gas can cause people to be asphyxiated due to its density

What is a carbon dioxide?

400

The mountain top of this volcano was destroyed when it erupted

What is Mount St Helens?

400

Human exposure to volcanic hazards is increasing in these types of countries

What are least developed countries (LDCs)?

400

These are used to divert streams of lava

What are artificial barriers?

400

This type of volcano exists in the middle of tectonic plates, where a crustal weakness allows molten material to penetrate from the Earth’s interior

What is a hot spot volcano?

400

A volcanic mudflow composed of sand–silt sized sediments, although other volcanic material, such as pumice can be transported too

What is a lahar?

500

These were used to control aa lava flows during Mauna Loa's 1942 eruption

What are explosives?

500

This program aims to improve the detection of airborne ash worldwide and issues warning messages to air traffic controllers, dispatchers and pilots



What is the International Airways Volcanic Watch program (IAVW)?

500

A scale ranging from 0-8, that measures the volume of ejected products, the height of an eruption cloud, the duration of the main eruptive phase, and several other factors

What is the Volcanic Explosivity Index (VEI)?

500

This type of volcano occurs where tectonic plates diverge and spread

What is a rift volcano?

500

All the fragmented material ejected by the volcano that subsequently falls to the ground

What is tephra?