Volcanic Regions
Volcanic Products
Famous Volcanoes
Factors that Affect Type of Eruption
Miscellaneous
100
Region of the world where the majority of volcanic eruptions occur.
What is the Ring of Fire?
100
Hot glowing cloud of ash and debris that sweeps down the volcano at high speed.
What is a pyroclastic flow?
100
Volcano located in the Cascade Mountains region of the US that erupted explosively in 1980.
What is Mt. St. Helens?
100
Type of volcanic eruption that produces mostly lava and gas.
What are effusive eruptions?
100
The most common type of volcano.
What is a stratovolcano (composite volcano)?
200
Unique world volcanic region that is not along the boundaries of tectonic plates.
What is Hawaii?
200
The volcanic product that is the least deadly.
What is lava?
200
Volcano in Hawaii that produces mostly lava and gas.
What is Kilauea?
200
The number one factor that determines if a volcano is going to erupt explosively or effusively.
What is the silica content within the magma?
200
This intrusive igneous rock formation forms the base of many mountain ranges.
What is a batholith?
300
Active volcanic region in the US where Mt. St. Helens is located.
What are the Cascade Mountains?
300
Product that is the result of hot ash mixing with melted snow and ice that flows rapidly down the side of a volcano after an eruption.
What is a lahar?
300
This volcano is one of the most famous examples of a shield volcano.
What is Kilauea or Mt. Etna?
300
This type of magma consists of over 65% silica.
What is granitic magma?
300
The three main gases released by magma.
What are water vapor, carbon dioxide, and sulfur dioxide?
400
The three active volcanic regions in the United States.
What are the Cascade Mountains, Alaska, and Hawaii?
400
The largest class of pyroclastics, considered to be any pyroclastic larger than 64mm wide.
What are blocks and bombs?
400
This volcano is in Columbia, and its eruption in 1985 produced a lahar that caused over 23,000 fatalities.
What is Nevado del Ruiz?
400
This type of plate boundary produces the widest range of magma.
What are convergent boundaries where subduction occurs?
400
Scientists measure these four things in an attempt to predict when a volcano is going to erupt.
What are seismic activity, temperature and acidity levels in rivers and lakes, gas emissions, and tiltmeters/GPS measurements?
500
The five major volcanic regions on Earth.
What are the Ring of Fire, Mediterranean Sea and East African Rift, Caribbean Sea, Mid Atlantic Rift System, and Hawaii?
500
The five different types of volcanic products.
What are lava, pyroclastics, pyroclastic flows, lahars, and gases?
500
This famous cinder cone volcano, located in New Mexico, last erupted around 60,000 years ago.
What is Capulin?
500
Basaltic magma is produced at these locations.
What are divergent boundaries and hot spots?
500
These are the five main benefits of volcanic activity.
What are fertile soil, new land, precious minerals, recreation, and geothermal energy?
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