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Why do hotspots form a chain of volcanoes rather than just one single volcano?

How volcanoes actually erupt

Chapter 1

The deep underground kitchen

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Chapter 2

The great escape routes

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Chapter 3

Two ways to blow a top

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Chapter 4

Under the sea and ice

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Chapter 5

The global aftermath

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YOUR GOAL

Master of How volcanoes actually erupt

Ch 2 · The great escape routes
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Magma's Great Escape
BETA

artiteacher Steer rising magma through underground pathways to discover how volcanoes actually erupt.

Jul 25

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artiteacher Volcanic Magma Pathways

Through the dikes, through the dikes We're moving sideways through the dikes

Jul 25

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artiteacher Ripping the crust apart

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Ripping the crust apart

artiteacher Mid-ocean ridges and rifts allow magma to rise through widening gaps.

Jul 25

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When tectonic plates collide

artiteacher Subduction zones push ocean crust deep into the mantle, melting it.

Jul 25

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Fun Fact

The Ring of Fire: The Ring of Fire is home to over 450 volcanoes and is where 90% of the world's earthquakes occur.

Jul 25

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Glossary
vent (noun)
An opening that allows air, gas, or liquid to pass out of or into a confined space. During the 1980 eruption of Mount St. Helens, volcanic gases and magma exploded through its lateral vent.

Jul 25

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Gossip

Would you rather live near a hotspot volcano or a subduction zone volcano?

Jul 25

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Quiz

What percentage of Earth's active volcanoes are located in the Ring of Fire?

Jul 25

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artiteacher When tectonic plates collide

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Quiz

How does water carried down by subducting plates affect the mantle rock?

Jul 25

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artiteacher The Ring of Fire boundary

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Quiz

Why do hotspots form a chain of volcanoes rather than just one single volcano?

Jul 25

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artiteacher Hotspots in the deep ocean

Jul 25

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Quiz

Approximately how long is the volcanic belt known as the Ring of Fire?

Jul 25

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Quiz

Which island chain was formed by a tectonic plate moving slowly over a stationary deep-mantle hotspot?

Jul 25

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Quiz

What tectonic process occurs when one plate slides beneath another, creating volcanoes?

Jul 25

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Quiz

What active rift system is slowly splitting the African continent apart?

Jul 25

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Quiz

What geological feature is created when tectonic plates pull apart at the bottom of the Atlantic Ocean?

Jul 25