How many super volcanoes are there in the world?


The Earth has approximately 20 known supervolcanoes, according to James Morgan, who write for the BBC News. What constitutes a "supervolcano" is not clearly defined, so the term is avoided in the literature, but it is often used in reference to two distinct phenomena.

According to Wikipedia, a supervolcano is any volcano that is capable of ejecting at least 1,000 cubic kilometers of rock in a single event. The term is used in connection with both large eruptions, such as occurred at Toba 78,000 years ago, and with large basaltic lava flows, such as the eruption of the Siberian traps.

Q&A Related to "How many super volcanoes are there in the world..."
The exact number of volcanoes in the world is unknown, but there are about 1,500 active volcanoes around the planet, most of which are located in the Pacific Ring of Fire.
There are seven super volcanoes (or megacaldera) in the world. Yellowstone, Long Valley, and. Valles Calderas in the United States; Lake Toba, North Sumatra, Indonesia; Taupo Volcano
I would guess that there are about 10. There's Long Valley and Yellowstone in US.…. This one is interesting. Note: One volcano can
There are five.Yellowstone is one of the world's five "super volcan...
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There are only six super volcanoes that we know of in the world in March 2013. These include the Yellowstone Caldera, the Long Valley Caldera, Valles Caldera, ...
The exact number of Volcanoes is unknown. There are different types of volcanoes, e.g. volcanic fields with several eruption centers, mountains with single vents ...
There are thousands of extinct volcanoes in the world. Extinct volcanoes are those which have not experienced any activity or eruptions over thousands to millions ...
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