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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:
A photo of Mount Cleveland taken on July 24, 2016. This image shows Cleveland's steep stratovolcano geometry and minor degassing from the summit. Photo by John Lyons, Alaska Volcano Observatory / USGS.
Thursday, Jun 28, 2018
The Alaska Volcano Observatory (AVO) reported on Tuesday evening 26 June 2018 that satellite images obtained from Cleveland volcano the day before show a small circular lava flow of about 80 meters (260 feet) diameter covering the floor of the summit crater. The presence of a lava flow over the active vent increases the possibility of a vent clearing explosion over the coming days to weeks and thus AVO is raising the Aviation Colour Code ORANGE and the Volcano Alert Level to WATCH. ... [more]
Sunday, May 20, 2018
Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: ... [more]


 

Cleveland volcano

Stratovolcano 1730 m (5,676 ft)
Aleutian Islands, Alaska, 52.83°N / -169.94°W
Current status: restless (2 out of 5)
Cleveland webcams / live data | Reports
Cleveland volcano books
Last update: 28 Jun 2018 (80 m diameter circular lava flow observed in summit crater, low seismic unrest)
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
TimeMag. / DepthDistanceLocation
Fri, 21 Sep
Fri, 21 Sep 13:27 UTCM 1.7 / 2 km28 km- 50km SW of Nikolski, Alaska
Fri, 21 Sep 03:35 UTCM 1.9 / 2.3 km34 km- 47km SW of Nikolski, Alaska
Thu, 20 Sep
Thu, 20 Sep 06:17 UTCM 1.1 / 3.6 km15 km- 46km W of Nikolski, Alaska
Wed, 19 Sep
Wed, 19 Sep 11:42 UTCM 1.0 / 3.2 km13 km- 47km W of Nikolski, Alaska
Wed, 19 Sep 08:41 UTCM 0.8 / 3.2 km11 km- 47km W of Nikolski, Alaska
View all recent quakes
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.

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


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