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Encyclopedia > Extinct volcano
Shiprock, the erosional remnant of the throat of an extinct volcano.
Shiprock, the erosional remnant of the throat of an extinct volcano.

An extinct volcano is a volcano which is not currently erupting and which is not considered likely to erupt in the future. Shiprock Shiprock, or Shiprock Peak (Dine: Tsé Bit Aí, winged rock) is a rock formation rising nearly 1,800 feet (540 meters) above the high-desert plain on the Navajo reservation, near the northern New Mexico town of Shiprock. ... Cleveland Volcano in the Aleutian Islands of Alaska photographed from the International Space Station For other uses, see Volcano (disambiguation). ... This article is about volcanoes in geology. ...


It is difficult to distinguish an extinct volcano from a dormant one because volcanoes are usually considered to be extinct if there are no written records of its activity. Nevertheless volcanoes may remain dormant for a long period of time and it is not uncommon for a so-called "extinct" volcano to erupt again. Vesuvius was thought to be extinct before its famous eruption of AD 79, which destroyed the towns of Herculaneum and Pompeii. More recently, the long-dormant Soufrière Hills volcano on the island of Montserrat was thought to be extinct before activity resumed in 1995. The most recent example is Fourpeaked Mountain in Alaska, which prior to September 2006 is not believed to have erupted since earlier than 7994 BC. Towering over the city of Naples, Vesuvius is dormant but certainly not extinct A dormant volcano is a volcano which is not currently erupting, but is believed to still be capable of erupting in the future. ... Towering over the city of Naples, Vesuvius is dormant but certainly not extinct A dormant volcano is a volcano which is not currently erupting, but is believed to still be capable of erupting in the future. ... Mount Vesuvius (Italian: Monte Vesuvio) is a volcano east of Naples, Italy, located at 40°49′N 14°26′ E. It is the only active volcano on the European mainland, although it is not currently erupting. ... This article is about the year 79. ... Herculaneum (in modern Italian Ercolano) is an ancient Roman town, located in the territory of the current commune of Ercolano. ... For other uses, see Pompeii (disambiguation). ... Not to be confused with Soufrière (volcano) or La Grande Soufrière. ... Year 1995 (MCMXCV) was a common year starting on Sunday. ... Fourpeaked Mountain also known as Fourpeaked volcano is an active stratovolcano in Alaska. ... For other uses, see Alaska (disambiguation). ... September 2006 is the ninth month of 2006 and has begun on a Friday. ...


The Auvergne region of France has 50 extinct volcanoes, which have not erupted for more than 6,000 years and have been eroded away, leaving plugs of unerupted hardened magma, which look like rounded hilltops. (Region flag) (Region logo) Location Administration Capital Clermont-Ferrand Regional President René Souchon (PS) (since 2006) Departments Allier Cantal Haute-Loire Puy-de-Dôme Arrondissements 14 Cantons 158 Communes 1,310 Statistics Land area1 26,013 km² Population (Ranked 19th)  - January 1, 2006 est. ... Magma is molten rock located beneath the surface of the Earth (or any other terrestrial planet), and which often collects in a magma chamber. ...


See also

Cleveland Volcano in the Aleutian Islands of Alaska photographed from the International Space Station For other uses, see Volcano (disambiguation). ... Towering over the city of Naples, Vesuvius is dormant but certainly not extinct A dormant volcano is a volcano which is not currently erupting, but is believed to still be capable of erupting in the future. ... A guyot is a flat-topped seamount. ...

  Results from FactBites:
 
Volcano - LoveToKnow 1911 (17787 words)
VOLCANO, an opening in the earth's crust, through which heated matter is brought, permanently or temporarily, from the interior of the earth to the surface, where it usually forms a hill, more or less conical in shape, and generally with a hollow or crater at the top.
The volcanoes of central France are regarded as extinct, inasmuch as no authentic historical record of any eruption is known, but there are not wanting signs that in some parts of this volcanic region the subterranean forces may yet be slumbering rather than dead.
Most of the lavas from the volcanoes of South America consist of hypersthene-andesite, and it is notable that the fragmental ejectamenta from the eruptions of St Vincent and Martinique in 1902 and from Krakatoa in 1883 were evidently derived from a magma of this Pacific type.
Volcanoes of Canada - Volcanic eruptions (653 words)
Volcanoes are referred to as 'active', 'dormant', or 'extinct'.
A volcano that is actually erupting is said to be 'active' or 'in eruption'.
However, it is important to remember that an erupting volcano may exhibit more than one type of behaviour, and it is not uncommon for both passive and explosive phases to occur in a single eruptive cycle.
  More results at FactBites »

 
 

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