37 Mount Sinabung spews hot lava and volcanic ash in North Sumatra, Indonesia, on Oct. The volcano had been dormant for 400 years before it erupted in August GALLERY - Nature's Wrath: Incredible Photos of Indonesia Volcano Sinabung Volcano, Lava, Bbc, World In Motion, Volcanic Ash, Powerful Images, Pictures Of The Week, Natural Disasters, Shutter Speed