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A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. [1] Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit ...
The two most recent eruptions of Vesuvius (1875–1906 and 1913–1944) each lasted more than 30 years. [25] Vesuvius is still regarded as an active volcano, although its current activity produces little more than sulfur-rich steam from vents at the bottom and walls of the crater. Layers of lava, ash, scoria and pumice make up the volcanic peak.
Mayon Volcano in Albay, The most active volcano in the Philippines, famous for its perfect symmetrical cone shape. Mount Pinatubo in Zambales. The catastrophic June 1991 eruption, which formed a caldera, later filled by a crater lake, had global environmental effects. Mount Bulusan in Sorsogon; Mount Kanlaon and Mount Talinis in Negros; Mount ...
It is composed of two separate cones with several summit craters. The westernmost crater of the eastern cone is presently active. Volcanic activity is characterized by constant release of volcanic gas and occasional vulcanian eruptions. Lascar has been active since at least 56,000 years ago, though some argue for activity beginning 220,000 ...
Popocatépetl (UK: / ˌ p ɒ p ə ˈ k æ t ə p ɛ t əl, ˌ p ɒ p ə k æ t ə ˈ p ɛ t əl / POP-ə-KAT-ə-pet-əl, -kat-ə-PET-əl, US: / ˌ p oʊ p-/ POHP-, Spanish: [popokaˈtepetl] ⓘ; Nahuatl languages: Popōcatepētl [popoːkaˈtepeːt͡ɬ] ⓘ) is an active stratovolcano located in the states of Puebla, Morelos, and Mexico in central Mexico.
World map of active volcanoes and plate boundaries Kīlauea's lava entering the sea Lava flows at Holuhraun, Iceland, September 2014. 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]
Cotopaxi (Spanish pronunciation: [kotoˈpaksi]) is an active stratovolcano in the Andes Mountains, located near Latacunga city of Cotopaxi Province, about 50 km (31 mi) south of Quito, and 31 km (19 mi) northeast of the city of Latacunga, Ecuador. [1] It is the second highest summit in Ecuador (after Chimborazo), reaching a height of 5,897 m ...
Pavlof 2013 eruption from space. Mount Pavlof or Pavlof Volcano is a stratovolcano of the Aleutian Range on the Alaska Peninsula.It has been one of the most active volcanoes in the United States since 1980, with eruptions recorded in 1980, 1981, 1983, 1986–1988, 1996–1997, 2007, 2013, twice in 2014, 2016, and is currently erupting as of August 2021.