As tens of thousands of people attempt to flee an erupting volcano on the tourist island of Bali, a U.S.-based volcanologist has warned it has all the tell-tale signs of becoming much worse.
With Mt. Agung volcano spewing plumes of volcanic ash 5.5 miles (8.8 kilometers) into the sky, Indonesian authorities have ordered the evacuation of 100,000 residents living near the volcano due to fears of a major eruption.
