Fire, Lava & Smoke- Stunning video of erupting Russian volcano

A volcano which started erupting in far east Russia late last month continued to spew lava, plumes of ash and smoke into the air on Sunday. The volcano has attracted tourists to the region despite temperatures down to minus 30 Celsius (minus 86 Fahrenheit). Local residents and tourists have been warned by authorities against visiting the area, citing the danger of hot lava and poisonous gases that come to the surface during the eruption.

Source: Youtube

Volcano erupts in Russia's Far East

A volcanic eruption in Russia's far eastern Kamchatka Peninsula has produced stunning images of lava flows oozing through a snowy wilderness. The Plosky Tolbachik volcano started erupting on 27 November 2012 after being dormant for more than 30 years. It is not known how long the eruption will last. The last time the volcano erupted was in 1975-1976.

Source: Youtube

New VOLCANOES in LOUISIANA, Gulf of Mexico

New VOLCANOES discovered in the Gulf of Mexico - BP videos of Activity.
The area of The Gulf of Mexico, which is rich in undersea oil deposits and Salt Domes, is also the area of a New Type of Volcano - the Asphaly Volcano. These Asphalt Volcanoes are active, seizmic and spew out ASPHALT instead of LAVA.

Source: Youtube

Why are volcanoes dangerous?

Volcanoes produce a number of hazards depending on the type of volcano. Even a volcano that is not erupting can release toxic gasses and cause earthquakes, though major earthquakes are rare. Volcanoes with low-viscosity magma often produce lava flows that move downhill, burning what they come in contact with. Volcanoes with high-viscosity magma tend to erupt explosively. These eruptions produce volcanic ash, which consists of tiny shards of glass that can damage and clog the lungs, which can lead to a very painful death. The ash, which can fall like snow, is about as dense as concrete, which can cause roofs to collapse. The ash can also mix with water from rain or melting ice, forming dense mudflows called lahars. Finally, the greatest danger from these eruptions are pyroclastic flows. These are mixtures of hot ash, rock, and gas that race down the sides of a volcano at great speeds, destroying everything in their path.

Source article: Wiki.answers.com