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12-20 Oct 2019: From Stromboli to Etna - Eolian Islands + Etna volcano (Italy)
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Random pictures

Uzon volcano

Calderas 1617 m / 5,305 ft
Kamchatka, Russia, 54.5°N / 159.97°E
Current status: normal or dormant (1 out of 5) | Reports
Uzon volcano books | Tours
Typical eruption style: unspecified
Uzon volcano eruptions: 200 AD ± 300 years No recent earthquakes
TimeMag. / DepthDistanceLocation

Background:

The twin Uzon and Geysernaya calderas, containing Kamchatka's largest geothermal area, form a 7 x 18 km depression that originated during multiple eruptions during the mid-Pleistocene. Widespread ignimbrite deposits associated with caldera formation have a volume of 20-25 cu km (exclusive of airfall deposits) and cover an area of 1700 sq km. Post-caldera activity was largely Pleistocene in age and consisted of the extrusion of small silicic lava domes and flows and maar formation in the Geysernaya caldera. The Lake Dal'ny maar in the NE part of the 9 x 12 km western caldera, Uzon, is early Holocene in age, and several Holocene phreatic eruptions have been documented in the Geysernaya caldera. The extensive high-temperature hydrothermal system includes the many hot springs, mudpots, and geysers of the Valley of Geysers, a 4-km-long canyon on the SE margin of the Uzon-Geysernaya depression. Hydrothermal explosions took place in the caldera in 1986 and 1989.
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Smithsonian / GVP volcano information

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Uzon volcano tours
Kamchatka - Land of Colors (volcano expedition to Kamchatka)

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