Spurr volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 11 May-17 May 2005 (Continuing Activity)
Wed, 11 May 2005, 06:00 | BY: VN
Elevated levels of seismicity continue to be recorded during 6-13 May. The AVO webcam images showed small steam plumes during the early part of this week. A pilot report received on 9 May described a small steam plume reaching 60-100 m (200-300 feet) above the summit crater.The crater lake level continues to drop, exposing more areas of steaming rock in the crater walls. Continued heat flux is indicated by vigorously upwelling water in the melt pit lake, rapid melting of ice and snow that has fallen into the lake, and minor steaming from rock surfaces and smaller melt pits in the vicinity of the summit crater. Spurr remained at Concern Color Code Yellow.
Source: US Geological Survey Alaska Volcano Observatory (AVO)
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From: Global Volcanism Program, 2005. Report on Spurr. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 11 May-17 May 2005. Smithsonian Institution and US Geological Survey.
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Wed, 4 May 2005, 06:00
Spurr volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 4 May-10 May 2005 (Continuing Activity)
An approximately 500-m-long debris flow emanating from the ice and snow ESE of the summit melt pit was seen from Anchorage and confirmed by an overflight on 2 May. This debris flow is similar in size and location to those observed in July 2004, just prior to first recognition of the summit melt pit. Clear views of the melt pit showed increased steam emanating from recently exposed rock around the lake, which coalesced to form a weak steam plume that rose above the rim of the melt pit. ... Read all
Wed, 27 Apr 2005, 06:00
Spurr volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 27 April-3 May 2005 (Continuing Activity)
During 22-29 April, elevated levels of seismicity continued to be recorded at Spurr. Thermal imagery taken on 25 April revealed that temperatures in the summit melt-pit region were similar to those recorded in September 2004, with values as high as 40 degrees Celsius in scattered patches of exposed rock. The lake in the summit crater continued to be discolored, and there was a strong scent of sulfur in the area, indicating continued gas emission. ... Read all
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