Votes
Another perfect ring in the sky. Its diameter is probably about 100 meters. (Photo: Tom Pfeiffer)
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| More on VolcanoDiscovery: Gorely volcano photos: Gorely is a young and very active shield volcano in southern Kamchatka. It is one of Kamchatka's easiest volcanoes to climb and offers stunning views into vast craters and the surrounding landscape.  Eyjafjallajökull volcano photos: The volcano in Iceland with the unpronounceable name... but famous in 2010 when its ash clouds drifted over Europe and forced a unprecedented large-scale airspace closure for several days, stranding millions of passengers.  Volcanic Ash Advisory Centres: Much current eruption news is provided by the 9 Volcanic Ash Advisory Centres (VAAC) distributed around the globe. The VAACs provide a vital service for aviation safety. |
