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Cleveland volcano

Updated: Feb 1, 2023 05:22 GMT -
Stratovolcano 1730 m (5,676 ft)
Aleutian Islands, Alaska, 52.83°N / -169.94°W
Current status: normal or dormant (1 out of 5)
Last update: 11 Jan 2023 (Smithsonian / USGS Weekly Volcanic Activity Report)

The beautifully symmetrical Mount Cleveland stratovolcano forms the western half of the uninhabited Chuginadak Island in the central 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.

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Typical eruption style: Explosive
Cleveland volcano eruptions: 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

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Sunday, January 29, 2023 GMT (1 quake)
Jan 29, 2023 12:36 pm (GMT -10) (Jan 29, 2023 22:36 GMT)
3.9

54 km
23 km (14 mi)
Bering Sea, 40 mi southwest of Nikolski, Aleutians West, Alaska, USA

Background

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


See also: Sentinel hub | Landsat 8 | NASA FIRMS
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)
Wed, 11 Jan 2023, 15:00

Cleveland volcano (Chuginadak Island, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 January-10 January 2023 (Continuing Activity)

AVO lowered both the Volcano Alert Level and the Aviation Color Code for Cleveland to Unassigned (insufficient monitoring to make an assessment) on 5 January, noting that signs of unrest had declined over the previous several months. Elevated surface temperatures in the summit crater were occasionally identified in satellite images but at a reduced frequency and strength. The last eruptive activity was a short-lived explosion on the evening of 1 June 2020, and sulfur dioxide emissions were last detected on 29 July 2022. ... Read all
Fri, 6 Jan 2023, 05:51

Cleveland volcano (Aleutian Islands, Alaska): Volcanic Alert Level lowered to Green

Cleveland volcano as visible from space on 13 Nov (image: Sentinel 2)
A sustained reduction of volcanic unrest at Cleveland Volcano over the past few months has prompted the Alaska Volcano Observatory to decrease the Aviation Color Code and Volcano Alert Level from "Yellow" to "Unassigned". ... Read all

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