"Hot spots" in the Earth's crust are so rare that only three of them have been documented.

Question

Quizplus · Accepted Answer

"Hot spots" are actually quite common in the Earth's crust, and there are many documented examples of them. However, only a few hot spots are responsible for forming the large volcanic structures known as "hot spot tracks," such as the Hawaiian Islands, Iceland and the Galapagos Islands. So while there are many smaller hot spots, only three major hot spot tracks have been identified.

"Hot Spots" in the Earth's Crust Are So Rare That