As of March 2014, Kilauea is in a constant state of eruption. It had lain dormant for several hundred years until it suddenly erupted on January 3, 1983. Superheated air and magma spewed into the air, and Kilauea has been actively erupting since.Know More
The Kilauea volcano erupts from two primary locations. The summit located at the Halema'uma'u crater continually vents and displays a plume in the sky. The east rift zone, which was created by the initial eruption called Pu'u 'O', pushes lava northwest through a forest.
Since 1983, the constant flow of lava into the ocean has created approximately 500 acres of new land but has also destroyed hundreds of homes. The volcano and the area surrounding it remains dangerous to visitors.Learn more about Volcanoes
A mainly basaltic type of lava is produced by Kilauea during a typical eruption. This extruded molten material is characterized by low concentrations of silica and high melting temperatures. Compared to rhyolitic lava, basaltic lava is more fluid.Full Answer >
In March 1991 and April 1991, magma rising 20 miles beneath the surface of the Pinatubo volcano caused many earthquakes and small explosions, which destroyed parts of the volcano. Then on June 12, 1991, magma filled with gas reached the surface, and the volcano erupted.Full Answer >
Mount St. Helens' most significant eruption in modern times occurred on March 20, 1980. It was followed by additional eruptions between Dec. 7, 1989 to Jan. 6, 1990, Nov. 5, 1990 to Feb. 14, 1991, Oct.11, 2004, Mar. 8, 2005, and between Jan. 16, 2008 to July 10, 2008.Full Answer >
Aconcagua is not classified as a volcano and has no recorded historical evidence of eruptions. The mountain was formed by colliding plate movements, not through the build up of rocks released from a volcanic fissure.Full Answer >