Mt. Shasta last erupted in 1786, and the French explorer La Pérouse witnessed it from his ship. The highest cone of the mountain, Hotlum Cone, has erupted at least eight times during the past 8,000 years. It is located in Siskiyou County, California.Know More
Mount Shasta's three possible previous eruption dates include 1250, 1200 and 850. It rises 10,000 feet above the surrounding landscape, and its estimated volume of 84 cubic miles makes it the most voluminous volcano in the Cascade Volcanic Arc.
A giant landslide swept away its entire northern side approximately 300,000 to 360,000 years ago. The landslide, with a volume of 1.6 cubic miles, is one of the largest on Earth.Learn more about Volcanoes
Mt. Vesuvius has the same kind of magma any volcano has. The magma chamber is a 400-square-kilometer layer of molten mantle that becomes lava when it exits the top. The mount has erupted multiple times throughout history and remains dangerous today.Full Answer >
Mt. Hekla is a stratovolcano that has been active for centuries. It's a very famous volcano in Iceland, with a height of 1,491 meters. Mt. Hekla has had five massive fissure eruptions in the last 7,000 years; the most recent fissure eruption was 2,800 years ago.Full Answer >
When Mt. St. Helens erupted on May 18, 1980, the blast devastated 229 square miles (596 meters) and destroyed millions of dollars worth of timber. During the eruption, the lateral blast removed the upper 1,306 feet (396 meters) of the “Bulge” on the north face of the volcano.Full Answer >
Mt. Shasta is classified as a steed-sided stratovolcano. The volcano is located in Siskiyou County, California along the I-5 corridor.Full Answer >