Volcano eruptions are both complex and exciting as they display a variety of eruption style depending on the form and the shape related to each type of volcano. Each characteristic has its own effect on the environment. Also, the volcanic activity level is determined by the volcano eruptions. Sunday, December 13, 2009. Ash Plume from Tavurvur, Papua New Guinea. A caldera volcano forms when a massive eruption empties the magm.

Iceland is currently the most volcanically active location on Earth. Growers found that the slopes of volcanoes tend to have fertile soil which is suited for for growing crops like grapes, olives and beans. The ancient Romans believed that Vulcan, their god of fire and metalwork, caused volcanic eruptions. A person who studies volcanoes is called a vulcanologist.

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This ASTER image of Santorini was acquired on November 21, 2000 and covers an area of 18 by 18 km. This detailed image of the young volcano was taken by the Ikonos satellite on June 11, 2005. The black shores of the island are scalloped where the flows have solidified in the ocean. Mt Etna , Italy.