Illustrative
 
 
Formation of hotspots beneath the Earth's crust See also
Cross-section through a volcano
Indonesian island which exploded in 1883
Hotspots (2006)  The above is a portion of a larger diagram, commissioned for the children's book Insiders: Volcanoes and Earthquakes. It shows how the motion of Earth's crust creates volcanoes in the ocean, such as the Hawaiian island chain.

 
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