Mount Vesuvius and other volcanoes of the world
by Ben Snowden Mount Vesuvius' 1944 eruption Other Volcanoes Mount St. Helens (Washington State) Mount Etna (Sicily) Mount…
Source: U.S. Dept. of the Interior, Geological Survey About 550 volcanoes have erupted on Earth's surface since recorded history; about 60 are active each…
By Robert I. Tilling
Volcanoes and volcanism are not restricted to the planet Earth. Manned and unmanned planetary explorations, beginning in the late 1960s, have furnished graphic evidence of…
PAHOEHOE LAVAAA LAVAHYDROTHERMAL ACTIVITYFIND OUT MOREVolcanoes are vents (openings) in the ground from which magma (molten rock), ash, gas, and rock fragments surge upwards, in an event…
HOW DOES A VOLCANO ERUPT? ARE ALL VOLCANOES DANGEROUS? LAVAFIND OUT MOREA volcano is a vent or weak spot in Earth’s crust through which magma (hot, melted rock) escapes as LAVA. In some places,…
The Question: Which U.S. state has the largest active volcano? The Answer: Hawaii's Mauna Loa is not only the largest active volcano in the country, but the…
(Encyclopedia) Hawaii Volcanoes National Park, 209,695 acres (84,926 hectares), on Hawaii island, Hawaii; est. 1916. The park contains two of the most active volcanoes in the world—Kilauea with its…
May 18, 1980 Mount St. Helens in Washington spews smoke, soot and ash into the sky in April, 1980. Its eruption that May devestated an area of about 150 square miles. Related Links…
