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A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. The process that forms volcanoes is called volcanism. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and because most of Earth ...
An active volcano is a volcano that has erupted during the Holocene (the current geologic epoch that began approximately 11,700 years ago), is currently erupting, or has the potential to erupt in the future. [1] A volcano that is not currently erupting but could erupt in the future is known as a dormant volcano. [1]
العربية; Azərbaycanca; বাংলা; Башҡортса; Беларуская; Беларуская (тарашкевіца) Bosanski; Čeština
Arthur's Seat as seen over the Firth of Forth from Fife. Arthur's Seat (Scottish Gaelic: Suidhe Artair, pronounced [ˈs̪ɯi.əˈaɾt̪ʰəɾʲ]) is an ancient extinct volcano that is the main peak of the group of hills in Edinburgh, Scotland, which form most of Holyrood Park, described by Robert Louis Stevenson as "a hill for magnitude, a mountain in virtue of its bold design". [1]
The Cheviot (/ ˈ tʃ iː v i ə t /) is an extinct volcano and the highest summit in the Cheviot Hills and in the county of Northumberland. [1] [5] Located in the extreme north of England, it is a 1 + 1 ⁄ 4-mile (2-kilometre) walk from the Scottish border and, with a height of 2,674 feet (815 metres) above sea-level, is located on the northernmost few miles of the Pennine Way, [6] before ...
Haleakalā (/ ˌhɑːliˌɑːkəˈlɑː /; Hawaiian: Hawaiian pronunciation: [ˈhɐlɛˈjɐkəˈlaː]), or the East Maui Volcano, is a massive, active shield volcano that forms more than 75% of the Hawaiian Island of Maui. The western 25% of the island is formed by another volcano, Mauna Kahalawai, also referred to as the West Maui Mountains.
There are around 200 volcanoes in Texas that have been extinct for millions of years, making them unlikely to erupt again, because the volcano no longer has a magma supply.
Kohala (mountain) Kohala is the oldest of five volcanoes that make up the island of Hawaii. Kohala is an estimated one million years old—so old that it experienced, and recorded, the reversal of Earth's magnetic field 780,000 years ago. It is believed to have breached sea level more than 500,000 years ago [1] and to have last erupted 120,000 ...