A hot spot is an area on Earth over a mantle plume or an area under the rocky outer layer of Earth, called the crust, where magma is hotter than surrounding magma. The magma plume causes melting and thinning of the rocky crust and widespread volcanic activity.
5 - 8
Earth Science, Geography, Geology, Physical Geography
2018 eruption on Mount Kilauea.
Photograph by the USGS
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May 20, 2022
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