Cleveland volcano (Alaska): alert status lowered to yellow
Tue, 3 Jan 2012, 11:36 | BY: T
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. The alert was raised to ORANGE on 29 Dec after an ash cloud, probably produced by a single explosion of Cleveland volcano, had been detected on satellite imaginary. The ash plume was found approximately 80 KM/50 miles north of the volcano and moving ESE at a height of 15,000 ft (ca. 5 km) ASL.
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- Information about: Cleveland volcano
Previous news
Wed, 28 Dec 2011, 06:00
Cleveland volcano (Chuginadak Island, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 28 December-3 January 2012 (New Activity / Unrest)
AVO reported that an ash cloud from Cleveland rose to an altitude of 4.6 km (15,000 ft) a.s.l. and drifted 80 km ESE on 29 December. AVO raised the Volcano Alert Level to Watch and the Aviation Color Code to Orange. ... Read all
Wed, 2 Nov 2011, 06:00
Cleveland volcano (Chuginadak Island, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 2 November-8 November 2011 (Continuing Activity)
AVO reported that a thermal anomaly over the lava dome surface in Cleveland's summit crater was visible on 2 November, although cloudy views mostly prevented observations. On 3 November AVO lowered the Volcano Alert Level to Advisory and the Aviation Color Code to Yellow because satellite observations indicated no significant change in the size of the lava dome, and no explosive activity or ash emissions had been reported. Cloud cover continued to prevent observations during 4-6 November. ... Read all
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