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Redoubt volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 5 November-11 November 2008 (New Activity / Unrest)

Wed, 5 Nov 2008, 06:00
06:00 AM | BY: VN
On 5 November, AVO raised the Aviation Color Code for Redoubt to Yellow and the Volcano Alert Level to Advisory because of significant changes in gas emission and heat output during the previous several months. The changes were a departure from the long-observed background activity. ASTER satellite images from 13 October detected warming near the summit craters; evidence of warming had been directly observed in July 2008.
Fumarolic activity and water flowing beneath Drift Glacier on the N flank had produced a 45-m-wide melt or collapse hole at an elevation of about 1,700 m (5,600 ft) on the Drift Glacier. On 2 November, a slushy debris-flow deposit originated from about the location of the 1966-68 vent. During 6-11 November, no activity was observed on satellite imagery and seismicity remained low.

Source: US Geological Survey Alaska Volcano Observatory (AVO)
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From: Global Volcanism Program, 2008. Report on Redoubt. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 5 November-11 November 2008. Smithsonian Institution and US Geological Survey.

Previous news

Wed, 1 Oct 2008, 06:00

Redoubt volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 1 October-7 October 2008 (New Activity / Unrest)

AVO reported that on 16 September, a pilot flying downwind of Redoubt reported smelling a strong sulfur dioxide odor. A week later, residents of a cabin near Wadell Lake (25 km NE) reported loud noises coming from the direction of Redoubt. During an overflight on 27 September, scientists observed several fractures and circular openings in the upper Drift glacier that had not been seen before. ... Read all
Location of Redoubt volcano (Image creators: Schaefer, Janet and Cameron, Cheryl;
Location of Redoubt volcano (Image creators: Schaefer, Janet and Cameron, Cheryl;
Redoubt volcano
stratovolcano 3108 m / 10197 ft
Cook Inlet (SW Alaska) (Alaska), 60.49°N / -152.74°W
Current status: normal or dormant (1 out of 5) Redoubt volcano eruptions:
1881 (?), 1902, 1903, 1966, 1989, 2009
Typical eruption style
Explosive
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