How many supervolcanoes are on Earth and what are some examples of supervolcanoes? <!-- hazards, geography -->
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USGS Frequently Asked Questions
Question:
How many supervolcanoes are on Earth and what are some examples of supervolcanoes?
Answer:
Because there is no well-defined minimum size for a "supervolcano," there is no exact number of such volcanoes. Examples of volcanoes that produced exceedingly voluminous pyroclastic eruptions and formed large calderas in the past 2 million years would include Yellowstone, Long Valley in eastern California, Toba in Indonesia, and Taupo in New Zealand. Other "supervolcanoes" would likely include the large caldera volcanoes of Japan, Indonesia, Alaska (e.g. Aniakchak, Emmons, Fisher), and other areas.
