GEOLOGY

Detailed explanation-1: -Hot spot volcanism is unique because it does not occur at the boundaries of Earth’s tectonic plates, where all other volcanism occurs. Instead it occurs at abnormally hot centers known as mantle plumes.

Detailed explanation-2: -Hot-spot volcanism This may happen in areas that are distant from plate boundaries. It is also referred to as hot spot or intraplate volcanism. Heat from the mantle plume causes melting and thinning of the crust, which leads to volcanic activity at the surface.

Detailed explanation-3: -Hot spot volcanoes occur far from plate boundaries. Because the hot spot is caused by mantle plumes that exist below the tectonic plates, as the plates move, the hot spot does not, and may create a chain of volcanoes on the Earth’s surface.

Detailed explanation-4: -Plates rip apart at a divergent plate boundary, causing volcanic activity and shallow earthquakes; and. At a convergent plate boundary, one plate dives or “subducts” beneath the other, resulting in a variety of earthquakes and a line of volcanoes on the overriding plate.

Detailed explanation-5: -Most volcanic eruptions occur near the boundaries of tectonic plates, but there are some exceptions. In the interior of some tectonic plates, magma has been erupting from a relatively fixed spot below the plate for millions of years.