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Dormant volcano

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Dormant volcanos are the volcanoes that are quiet, but might possibly erupt again.[1] A dormant volcano is "sleeping," but it could awaken in the future. Mount Rainier in the United States is considered dormant.[2]

Dormant volcanos include those which have erupted in the past 10,000 years.[2]

Difficult to classify

The "Hōei crater" is visible to the right of the peak of Mount Fuji. It was created in 1707.

It is difficult to distinguish active and inactive volcanos.

For example, some scientists have described Mount Fuji as dormant or inactive.[2] The volcano that has been dormant since its last eruption in 1707,[3] but is also classified as active.[4] According to the Geological Survey of Japan, Mount Fuji is considered among the active volcanoes on the island of Honshu.[5]

Mis-labeled as dormant or extinct

Some volcanoes may remain dormant for a long time; and an eruption is a surprise.

Before 79 AD, Vesuvius was considered dormant.

Before 1991, the Pinatubo volcano in the Philippine was labeled as dormant.

Before 1995, the Soufrière Hills volcano on the island of Montserrat was dormant.[6]

Select list

There are many examples of volcanoes which are considered dormant.

Related pages


  1. The plural of volcano can be either volcanos or volcanoes. Both are equally correct, and it is not a matter of British vs US spelling. Oxford English Dictionary. Spelling in any particular Simple page tries to be consistent.
  2. 2.0 2.1 2.2 2.3 Ball, Jessica. "Voices: Dead or alive ... or neither? Why a dormant volcano is not a dead one," Earth Magazine (American Geosciences Institute). September 8, 2010; retrieved 2012-6-14.
  3. Titsingh, Isaac. (1834). Annales des empereurs du japon, p. 416; Shizuoka University, 宝永四年(1707)噴火; retrieved 2012-6-14.
  4. Britannica Online, "Mount Fuji"; retrieved 2012-6-14.
  5. Geological Survey of Japan, "Active Volcanoes in Japan"
  6. "'Ladies and gentlemen, on your left you will see an erupting volcano': The stunning sight Caribbean holidaymakers saw from plane," Daily Mail (UK). 1 April 2010; retrieved 2012-6-14.
  7. University of Hawaii, Institute of Astronomy, "About Mauna Kea Observatories"; retrieved 2012-6-14.
  8. British Columbia Parks, "Mount Edziza Provincial Park"; retrieved 2012-6-15.
  9. University of Western Australia, "Volcanoes & Earthquakes in SE Australia," 2 December 2004; retrieved 2012-6-14.
en:Volcano#Volcanic activity