West Iceland's volcano is a rift activity volcano, which involves the earth being pulled apart in two different directions ...

Based on our knowledge of Yellowstone’s eruptive history, the annual probability of a volcanic eruption is on the order of ...

On volcanoes, a fissure is an elongated fracture ... lava will flow back into the ground by pouring into a crack or an open eruptive fissure, a process called drainback; sometimes lava will ...