Active volcano
An active volcano is a volcano which is either erupting or is likely to erupt in the future. An active volcano which is not currently erupting is known as a dormant volcano
Overview
Tlocene Epoch.[1] Most volcanoes are situated on the Pacific Ring of Fire.[2] An estimated 500 million people live near active volcanoes.[2]
Historical time (or recorded history) is another timeframe for active.[3][4] However, the span of recorded history differs from region to region. In China and the Mediterranean, it reaches back nearly 3,000 years, but in the Pacific Northwest of the United States and Canada, it reaches back less than 300 years, and in Hawaii and New Zealand it is only around 200 years.[3] The incomplete Catalogue of the Active Volcanoes of the World, published in parts between 1951 and 1975 by the International Association of Volcanology, uses this definition, by which there are more than 500 active volcanoes.[3][5] As of March 2021[update], the Smithsonian Global Volcanism Program recognizes 560 volcanoes with confirmed historical eruptions.[1]
As of 2013, the following are considered Earth's most active volcanoes:[6]
- Kīlauea, the famous Hawaiian volcano, was in nearly continuous, effusive eruption (in which lava steadily flows onto the ground) between 1983 through 2018, and had the longest-observed lava lake.
- Mount Etna and nearby Stromboli, two Mediterranean volcanoes in "almost continuous eruption"[vague] since antiquity.[clarification needed]
- Piton de la Fournaise, in Réunion, erupts frequently enough to be a tourist attraction.
As of 2010[update], the longest ongoing (but not necessarily continuous) volcanic eruptive phases are:[7]
- Mount Yasur, 111 years
- Mount Etna, 110 years
- Stromboli, 108 years
- Santa María, 101 years
- Sangay, 94 years
Other very active volcanoes include:
's lava lake
References
- ^ a b Venzke, E., ed. (2013). "How many active volcanoes are there?". Global Volcanism Program Volcanoes of the World (version 4.9.4). Smithsonian Institution. Retrieved 2 April 2021.
- ^ a b "Volcanoes". European Space Agency. 2009. Retrieved August 16, 2012.
- ^ a b c Decker, Robert Wayne; Decker, Barbara (1991). Mountains of Fire: The Nature of Volcanoes. Cambridge University Press. p. 7. ISBN 978-0-521-31290-5.
- ^ Tilling, Robert I. (1997). "Volcano environments". Volcanoes. Denver, Colorado: U.S. Department of the Interior, U.S. Geological Survey. Retrieved August 16, 2012.
There are more than 500 active volcanoes (those that have erupted at least once within recorded history) in the world
- ^ DeFelice, B.; Spydell, D.R.; Stoiber, R.E. (14 November 1997). "Catalogs of Active Volcanoes". The Electronic Volcano. Dartmouth College. Archived from the original on 2020-01-19. Retrieved 16 April 2021.
- ^ "The most active volcanoes in the world". VolcanoDiscovery.com. Retrieved August 3, 2013.
- ^ Leontiou, A. (2 November 2010). "The World's Five Most Active Volcanoes". livescience.com. Retrieved August 4, 2013.