Electric: Calbuco Volcano is located in the lakes region south of Santiago, Chile's capital city and is one of the 10 most dangerous volcanoes in the country. On April 23, after more than 40 years of inactivity, the volcano erupted, spewing more than 200 million tons of ash and causing the evacuation of more than 2,000 people. In the picture is seen one of the most violent moments of the eruption, which occurred in the early hours of April 24. Photo by Francisco Negroni
Hawaiʻi Volcanoes National Park (USA). 'Set on the hillside of the world’s tallest volcano, this national park will remind you that nature is very much alive. An extensive network of trails encompasses lava flows, steam vents, lava tubes and, if you wish, wild backcountry. The highlight is the stunning panorama of Halemaʻumaʻu, an enormous crater spewing tons of ash into the sky.' http://www.lonelyplanet.com/usa/hawaii/hawaii-volcanoes-national-park/sights/other/hawaii-volcanoes-national
Best 2014 Science Pictures Part 2/ Despite looking unreal, this is what the area surrounding Mt. Ontake in Japan looked like after it erupted, spewing tons of ash and completely covering everything in sight.