The Hawaiian Islands, which are entirely volcanic in origin, formed in the middle of the Pacific Ocean, more than 3,200 km from the nearest plate boundary. This is explained by the 'hotspot' theory.

This spot is called a hotspot, and it creates a type of volcano not associated with a plate boundary. Yellowstone has produced three caldera types of volcanic explosions: The first happened 2.1 ...

but are located more than 3,200 kilometres from the nearest plate boundary. This is explained by the 'hotspot' theory. Key fact The 'hotspot' theory is that there are fixed spots in the mantle ...