Fuse means, essential component is a metal wire or strip that melts when too much current flows, which breaks the circuit in which it is connected, thus protecting the circuit's other components from damage due to excessive current. I hope that helps.
Rift volcanoes occur where tectonic plates diverge, often on the ocean floor. These are generally less explosive. Hot spot volcanoes occur in the middle of plate boundaries where magma exits from weaknesses in the earth's surface. The Hawaiian Islands are an example of hot spot volcanoes. The most active area of volcanic activity occurs along the pacific plate boundary which is often referred to as the 'Pacific ring of fire'.
Increasing volcanic activity has been observed at one of the world's most active volcanoes, Kilauea Volcano in Hawaii Island, after a new vent sent lava shooting 65 feet in the air. The Hawaiian Volcano Observatory (HVO) stated that rapid deflation at one of the volcanic crater floor, Pu'u 'O'o, on Saturday led to the eruption of fissure. One of five shield volcanoes that collectively form the Island of Hawaii, Kilauea is one of the most active volcanoes on the surface of Earth.