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Sunday, May 21, 2017
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ... [more]
Satellite image of Klyuchevskoy volcano on 19 May 2017
Friday, May 19, 2017
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ... [more]

NASA photo of the eruption of Klyuchevsky volcano on 30 September, 1994, the volcano's largest explosion in 40 years. The large eruption cloud billowed from the summit, and deposited volcanic ash (pulverized rock) on the snow-covered region to the east. Another small steam plume was rising from Bezymianny, the smaller “C”-shaped volcanic summit south of Klyuchevskaya.
NASA photo of the eruption of Klyuchevsky volcano on 30 September, 1994, the volcano's largest explosion in 40 years. The large eruption cloud billowed from the summit, and deposited volcanic ash (pulverized rock) on the snow-covered region to the east. Another small steam plume was rising from Bezymianny, the smaller “C”-shaped volcanic summit south of Klyuchevskaya.

Klyuchevskoy volcano

Stratovolcano 4835 m (15,863 ft)
Kamchatka, 56.06°N / 160.64°E
Current status: erupting (4 out of 5)
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Last update: 21 May 2017
Typical eruption style: Dominantly explosive, strombolian and vulcanian activity, sometimes lava flows from fissure vents. At present in a phase of near-persistant activity.
Klyuchevskoy volcano eruptions: 1697-98, 1720-21, 1727-31, 1737, 1740, 1762, 1767, 1770, 1772, 1785, 1787, 1788, 1789-90, 1791, 1807, 1812, 1813, 1819-22, 1829, 1840, 1848, 1852, 1853-54, 1865, 1877, 1878, 1879, 1882, 1883, 1890, 1896-97, 1890, 1896-97, 1898, 1904, 1907, 1909, 1910, 1911, 1913, 1915, 1922, 1923, 1925, 1926, 1929, 1931, 1932, 1935-36, 1937-39, 1944-1945, 1946, 1948, 1949, 1951, 1953, 1954, 1956, 1957, 1958, 1959, 1960-63, 1963-64, 1965-1966, 1967, 1968, 1969, 1970, 1971, 1971-73, 1974, 1977-80, 1981, 1982, 1982-83, 1984-85, 1986, 1986-90, 1991, 1992, 1992-93, 1994-95, 1996-97, 1998, 1999, 2000, 2002, 2002-04, 2005 - ongoing
TimeMag. / DepthDistanceLocation
Wed, 24 May
Wed, 24 May 12:48 UTCM 0.9 / 1.1 km1 kmKluchevskoy group of volcanoes
Wed, 24 May 11:49 UTCM 0.9 / 1 km2 kmKluchevskoy group of volcanoes
Tue, 23 May
Tue, 23 May 18:39 UTCM 1.2 / 22.7 km7 kmKluchevskoy group of volcanoes
Tue, 23 May 18:38 UTCM 1.4 / 15.1 km5 kmKluchevskoy group of volcanoes
Tue, 23 May 18:30 UTCM 1.3 / 3.7 km7 kmKluchevskoy group of volcanoes
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Klyuchevskoy volcano (also spelled Kliuchevsky, Klyuchevskaya) is Kamchatka's highest and one of the world's most active volcanoes.
Klyuchevskoy is located in a remote area of the Kamchatka peninsula. It has a large active crater with frequent strombolian and lava fountain eruptions.

Background:

Since its origin about 6000 years ago, the beautifully symmetrical, 4835-m-high basaltic stratovolcano has produced frequent moderate-volume explosive and effusive eruptions without major periods of inactivity. Kliuchevskoi rises above a saddle NE of sharp-peaked Kamen volcano and lies SE of the broad Ushkovsky massif. More than 100 flank eruptions have occurred at Kliuchevskoi during the past roughly 3000 years, with most lateral craters and cones occurring along radial fissures between the unconfined NE-to-SE flanks of the conical volcano between 500 m and 3600 m elevation. The morphology of its 700-m-wide summit crater has been frequently modified by historical eruptions, which have been recorded since the late-17th century. Historical eruptions have originated primarily from the summit crater, but have also included numerous major explosive and effusive eruptions from flank craters.
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Source: Klyuchevsky information by the GVP (Smithsonian Institution)

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