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A volcano is an opening in Earth's crust where magma breaks through, and when erupting can rain down molten rock, ash and gases. There are several types of volcanoes.
There are different types of volcanoes, including stratovolcanoes, shield volcanoes and cinder cones, and different types of lava and other volcanic flows. Volcanoes can be active, dormant or extinct.
Volcanoes in history AD 79 : One of the most famous volcanoes is Mount Vesuvius , which sits along the Bay of Naples in southern Italy. It has erupted more than 50 times in the past 2,000 years.
Supervolcanoes are volcanoes that can produce eruptions of the highest magnitude — an 8 on the Volcano Explosivity Index — expelling more than 240 cubic miles (1,000 cubic kilometers) of ...
A view of Mount Erebus from the Ross Sea in Antarctica. (Image credit: Alamy) Deception Island, on the other hand, is the caldera of an active volcano, which last erupted in 1970, according to the ...
The Hawaiian shield volcanoes are the largest mountains on Earth. The total height of Mauna Kea, below and above sea level, is 33,500 feet (10,210 meters), making it taller than even Mount Everest.
There haven't been any VEI-8 volcanoes in the last 10,000 years, but human history has seen some powerful and devastating eruptions. Because it's extremely difficult for scientists to be able to ...
"About 80% of the Earth's magma output comes from volcanoes along these ridges, which are typically 3 to 4 km [1.8 to 2.5 miles] below the ocean surface," he added. "Some of the ridge system ...
In 2005, Sierra Negra, one of the biggest volcanoes in the Galapagos, blasted out a column of ash 25,000 feet (7.5 km) high. As with Hawaii's Mauna Loa volcano, Sierra Negra is one of several ...
Active volcanoes were erupting on the far side of the moon 2.8 billion years ago, the first lunar samples returned from the far side reveal. When you purchase through links on our site, we may ...