Spurr volcano (United States) - Smithsonian / USGS Weekly Volcanic Activity Report for 27 April-3 May 2005 (Continuing Activity)
Wed, 27 Apr 2005, 06:00 | BY: VN
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.The summit melt pit was estimated to be approximately 250 m in diameter, and it continued to widen as the summit snow pack collapsed into the lake. No unusual activity was observed in satellite or web camera images during the report week. Mt.
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 27 April-3 May 2005. Smithsonian Institution and US Geological Survey.
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