What is a hotspot and how does it create volcanic activity?

What is a hotspot and how does it create volcanic activity?

A hotspot is a location on the Earth's surface where a column of hot molten rock, called a mantle plume, rises from deep within the Earth's mantle. This plume of hot material creates a localized area of intense heat beneath the Earth's crust. As the crust moves over the hotspot, the intense heat causes the melting of the crust, leading to the formation of magma. This magma then rises to the surface, resulting in volcanic activity and the formation of volcanoes.