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In areas where the plates come together, sometimes volcanoes will form. Volcanoes can also form in the middle of a plate, where magma rises upward until it erupts on the sea floor, at what is called a âhot spot.â. The Hawaiian Islands were formed by such a hot spot occurring in the middle of the Pacific Plate. While the hot spot itself is fixed, the plate is moving. So, as the plate moved over the hot spot, the string of islands that make up the Hawaiian Island chain were formed.
Most volcanoes occur around the edges of the tectonic plates. Hot spot volcanoes are different because they do not occur near the edges of a plate, but rather occur at quite a distance from the edges. The movement of these hot spots volcanoes can be tracked as well.ot spots often erupt continually and the lava creates basaltic rocks. There are cases in which the eruptions of hot spot volcanoes can be very explosive. This is due to the strength and weight of the rock and earth covering the volcano's mouth and the pressure accumulated by a lack of escape routes.