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Cleveland volcanostratovolcano 1730 m (5,676 ft)Alaska, 52.83°N / -169.94°W Cleveland volcano eruptions: 1893, 1897, 1929(?), 1932, 1938, 1944, 1951(?), 1953(?), 1975(?), 1984, 1985(?), 1986, 1987, 1989(?), 1994, 2001, 2006, 2008, 2010, 2011 Typical eruption style: Explosive Cleveland webcams / live data 
Eruption news from Cleveland volcano:Tuesday, May 08, 2012
Based on analyses of satellite images, AVO reported on 4 May that the small lava dome recently emplaced in Cleveland's summit crater had been destroyed late in the previous week, but the explosion was too small to be detected by distant infrasound and seismic networks. A small new dome was extruded following the explosion and was the fifth dome to be observed in this eruptive episode which began in July 2011. During 4-5 May two small explosions were detected. ...more [read all]
Thursday, May 03, 2012
Elevated surface temperatures were detected over Cleveland in satellite imagery during 25-29 April and possibly on 30 April. ...more [read all]
Thursday, Apr 19, 2012
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Thursday, Apr 12, 2012
AVO reported that a small explosion from Cleveland was detected at 0112 on 4 April by distant seismic stations and infrasound arrays. Weather conditions prevented the detection of a possible eruption cloud in satellite images or by visual observation of the summit. Observations the next day revealed a thermal anomaly and that the 70-m-diameter lava dome had been destroyed by the explosion. This was the third lava dome that was erupted and subsequently destroyed by explosive events since the eruption began in July 2011. ...more [read all]
Friday, Mar 30, 2012
Recent satellite views show that a another lava dome has formed in the summit crater over the past week. AVO is raising the volcano color code to ORANGE and volcano alert level to WATCH to reflect this increase in activity. AVO has received no other reports of activity at the volcano. [read all]
Thursday, Mar 29, 2012
On 23 March that the Volcano Alert Level and Aviation Color Code for Cleveland were lowered to Advisory and Yellow, respectively, because no explosions had been detected since 13 March and lava-dome growth was not evident after that. [read all]
Thursday, Mar 15, 2012
Cleveland Volcano in the Aleutian Islands has had a few small explosive ash eruptions, the last one on 14 March, the Alaska Volcano Observatory (AVO) reports. ...more [read all]
Monday, Feb 20, 2012
No indications of explosive ash-producing activity from distant seismic, pressure or lightning sensors. ...more [read all]
Saturday, Feb 11, 2012
The Alaska Volcano Observatory notes that "satellite observations suggest slow growth of the lava dome may be occurring in the summit crater. No ash emissions or explosions detected." ...more [read all]
Wednesday, Feb 01, 2012
Cleveland Volcano (Aleutian Islands) is showing renewed activity, which was observed in satellite data, and AVO is raising the Aviation Color Code to Orange and the Alert Level to Watch. A new lava dome has been observed in the summit crater, and as of 30 January 2012 was approximately 40 meters (130 feet) in diameter. There have been no observations of ash emissions or explosive activity during this current lava eruption. ...more [read all]
Tuesday, Jan 03, 2012
The Alaska Volcano Observatory has lowered the alert level for Cleveland volcano from ORANGE (eruption imminent) to YELLOW (watch), after no activity has been detected at the volcano in the past days. ...more [read all]
Tuesday, Sep 14, 2010
An probable eruption at Cleveland volcano occured on 12 Sep 2010, producing an ash plume detected in satellite imagery that rose to the estimated altitude of 7.6 km (25,000 ft) a.s.l. and drifted E. ...more [read all]
Wednesday, Jun 02, 2010
AVO confirms that the event on 30 May was an eruption that produced an ash plume rising no higher than 4.9 km (16,000 ft) a.s.l. and drifting SW. [read all]
Tuesday, Jun 01, 2010
The Alaska Volcano Observatory notes increased steaming activity from remote Cleveland volcano, one of the most active ones in the Aleutian chain. The volcano is currently not covered by a monitoring network, and has the potential of large explosive eruptions that could send ash to 10-20 km elevation. ...more [read all]
Thursday, Jul 24, 2008
A new eruption seems to have started at Cleveland volcano on 21 July. AVO raised the Volcano Alert Level as there were reports from pilots and fishing boats in the area, observing a new ash eruption that had started at about noon that day. Pilots reported that an ash-and-steam plume rose to ...more [read all]
Thursday, May 08, 2008
A small ash eruption took place at Cleveland volcano on May 7. The ash plume reached around 4.6 km altitude. [read all]
Thursday, Feb 21, 2008
AVO reported that a minor explosion from Cleveland on 15 February. The Volcanic Alert Level remained at Color Code Yellow. [read all]
Wednesday, Feb 20, 2008
A diffuse ash plume from Cleveland was observed during a break in cloud cover on 8 February. Pilots reported an ash plume that rose to an altitude of 6.1 km. Increased activity raised the Volcanic Alert Level to Orange. During 10-11 February, a thermal anomaly was visible on satellite imagery. The Volcanic Alert Level was lowered back to Yellow on 12 February. ...more [read all]
Friday, Sep 14, 2007
The Alaska Volcano Observatory lowered the alert level at Cleveland volcano from Orange to Yellow on 6 Sep. Since late July, no signs of eruptive activity have been registred. [read all]
Friday, Aug 31, 2007
Clouds obscured satellite and web camera views of Cleveland volcano during 22-28 August. A clear view of the crater on 23 and 28 August revealed thermal anomalies at the summit. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch. [read all]
Sunday, Aug 05, 2007
A thermal anomaly in the crater of Cleveland was visible on satellite imagery during 25-26 July. ...more [read all]
Thursday, Jul 26, 2007
The AVO raised the alert level because of the presence of strong thermal anomaly in the crater. There are also steam-and-gas plumes observed on satellite. Color Code Orange.
Monday, Oct 30, 2006
Cleveland volcano had a moderate ash eruption on 28 Oct. 2006. Based on pilot reports and satellite data, AVO estimated the height of the cloud to be 20,000 ft. above sea level.
Friday, May 26, 2006
 A NASA satellite image of the volcanic ash plume over Cleveland volcano There are new satellite photographs by NASA that show a great plume over the Cleveland volcano. [read all]Thursday, May 25, 2006
On 23 May, AVO reported that an astronaut aboard the International Space Station observed an ash plume from Cleveland at 1500. A plume was visible on satellite imagery at 1507 that drifted SW and reached a height of 6.1 km (20,000 ft) a.s.l. At 1700, an image showed the detached ash plume 130 km SW of Cleveland. The Concern Color Code was raised to Yellow. No precursory or current seismic information is available because Cleveland does not have a real-time seismic network.
Wednesday, Feb 15, 2006
No new information about further eruptive activity or ash emissions at Cleveland Volcano since February 6 and no ash clouds have been detected in satellite imagery over the past week. [read all]
Tuesday, Feb 07, 2006
The remote Cleveland volcano erupted on the morning of 6 February 2006 at 7:57AM AKST (1657 UTC). An ash clomn was detected by statellite, rising to approximately 7 km a.s.l. (22,000 ft) and extending about 80 miles (130 kilometers) ESE of the island. The explosion appears to be an isolated event, the Alaska Volcano Observatory (AVO) reports. The concern code was originally raised to RED (highest level) and has now (7 Feb) again been lowered to YELLOW. ...more [read all]
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