Violent eruption Mount Merapi erupts violently in Tuntggularum, Indonesia, on May 17. More than 22,000 people have been evacuated from the slopes of Indonesia’s smoke-belching Mount Merapi. Merapi’s most deadly fit occurred in 1930, when 1,369 people were killed by lava and heat clouds. Another in 1994 unleashed heat clouds that killed more than 60 people. (AFP/Getty Images/Jewel Samad)