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Augustine Volcano (Alaska) during its eruptive phase on January 24, 2006. A volcano is commonly defined as a vent or fissure 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.
Sakurajima's activity became more prominent in 1955, and the volcano has been erupting almost constantly ever since. Thousands of small explosions happen each year, throwing ash to heights of up to a few kilometers above the mountain. The Sakurajima Volcano Observatory was set up in 1960 to monitor these eruptions. [10]
List of volcanoes in Ethiopia; List of volcanoes in Kenya; List of volcanoes in Libya; List of volcanoes in Madagascar; List of volcanoes of Mauritius; In Nigeria all the volcanoes are in the Biu Plateau; List of volcanoes in Réunion; List of volcanoes in Rwanda; São Tomé and Príncipe has only one volcano, Pico de São Tomé; List of ...
Compositional analysis has been very successful in the grouping of volcanoes by type, [9]: 274 origin of magma, [9]: 274 including matching of volcanoes to a mantle plume of a particular hotspot, mantle plume melting depths, [10] the history of recycled subducted crust, [9]: 302–3 matching of tephra deposits to each other and to volcanoes of ...
The Yellowstone Plateau Volcanic Field, also known as the Yellowstone Supervolcano or the Yellowstone Volcano, is a complex volcano, volcanic plateau and volcanic field located mostly in the western U.S. state of Wyoming, but it also stretches into Idaho and Montana. [4] [5] It is a popular site for tourists. [6] Map of Yellowstone Volcano ash beds
Sangay (also known as Macas, Sanagay, or Sangai) [8] is an active stratovolcano in central Ecuador.It exhibits mostly strombolian activity. Geologically, Sangay marks the southern boundary of the Northern Volcanic Zone, and its position straddling two major pieces of crust accounts for its high level of activity.
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Active volcanoes such as Stromboli, ... produced the "Year Without a Summer" [13] 1808 mystery eruption, VEI 6–7; discovered from ice cores in the 1980s.