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Diaporama
Location map of Cleveland volcano, Alaska (image: Janet Schaefer, Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys)
Location map of Cleveland volcano, Alaska (image: Janet Schaefer, Alaska Volcano Observatory / Alaska Division of Geological & Geophysical Surveys)
Latest news:
Source: USGS
Friday, Oct 04, 2019
Unrest continues. Episodes of lava effusion and explosions can occur without advance warning. Explosions from Cleveland are normally short duration and only present a hazard to aviation in the immediate vicinity of the volcano. Larger explosions that present a more widespread hazard to aviation are possible, but are less likely and occur less frequently. ... [details]
Thursday, Jan 17, 2019
A new lava dome has been observed to be growing in the summit crater following a small explosion on January 9- continuing a pattern of behaviour typical of Cleveland since it began a period of regular activity in 2005. AVO raised Cleveland to ORANGE/WATCH. [details]


 

Cleveland volcan

Stratovolcano 1730 m (5,676 ft)
Aleutian Islands, Alaska, 52.83°N / -169.94°W
Condition actuelle: en vigilance - niveau agité (2 sur 5)
Cleveland webcams / données en temps réel | Reports
Cleveland livres
Last update: 4 Oct 2019
Style éruptif tipique: Explosive
Eruptions du volcan Cleveland: 1893, 1897, 1929(?), 1932, 1938, 1944, 1951(?), 1953(?), 1975(?), 1984, 1985(?), 1986, 1987, 1989(?), 1994, 2001, 2006, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 No recent earthquakes
HeureMag. / DepthDistanceLocation
The beautifully symmetrical Mount Cleveland stratovolcano forms the western half of the uninhabited Chuginadak Island in the eastern Aleutians, connected to the eastern half of the island by a narrow isthmus. It is one of the regions most active volcanoes, but at present has no seismic network. Monitoring of its activity is largely based on satellite observation.

Introduction:

The 1730-m-high Mount Cleveland has the native name of Chuginadak, referring to the Aleut goddess of fire, who was thought to reside on the volcano. Numerous large lava flows descend the steep-sided flanks of the volcano.

It is possible that some 18th to 19th century eruptions attributed to Carlisle should be ascribed to Cleveland (Miller et al., 1998). In 1944 Cleveland produced the only known fatality from an Aleutian eruption. Recent eruptions from Mount Cleveland have been characterized by short-lived explosive ash emissions, at times accompanied by lava fountaining and lava flows down the flanks. In February, 2001, Cleveland had 3 explosive events that produced ash clouds as high as 12 km (39,000 ft) above sea level. That eruption also produced a rubbly lava flow and hot avalanche that reached the sea.
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Sources: AVO/USGS, Smithsonian Institution


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