This video from MinuteEarth explains the three main ways volcanoes eventually “die.” Some lose their magma supply when tectonic activity stops, some drift away from underground hotspots like the one that created Hawaii, and others literally clog themselves shut with cooled magma. The video also dives into the colossal eruption of Toba and the unsettling reality that some “dead” volcanoes might actually just be dormant for absurdly long periods of time. Check it out!