What two types of locations are hot spots typically found in?

Question

What will be an ideal response?

Answer 1

Answer: 1. Large volumes of young volcanic rocks very far from plate boundaries. Examples are Hawaii and Yellowstone… On average, about 0.1 cubic kilometer of lava erupts on the island of Hawaii each year. This is enough lava to bury San Francisco a meter deep each year and is more than 5 percent of the volume erupted along all of the world's mid-ocean ridges. This incredible eruption rate built huge shield volcanoes more than 9 kilometers above the seafloor. Yellowstone National Park marks a similarly prolific volcanic hot spot where 6000 cubic kilometers of magma erupted over the last 2 million years, mostly as rhyolitic tuff.
2. Unusually prolific volcanism along or near a divergent boundary. The volcanic activity is so excessive compared to typical mid-ocean ridges that the hot spot volcanoes commonly build up well above sea level. Iceland is an example of this type of hot spot. Scientists hypothesize that there must certainly be some mechanism other than normal divergent-margin processes to generate the excessive amounts of magma.