Shishaldin volcano (Alaska): increase of activity, likely lava fountains
Thu, 15 May 2014, 08:33 | BY: T
Shishaldin volcano yesterday evening (AVO webcam)
MODIS hot spots at Shishaldin(MODVOLC, Univ. Hawaii)
The heat signals detected went along with increasing volcanic tremor detected.
There is no visual confirmation of such activity so far; webcam images only show a weak degassing plume, but these images are too distant to allow detailed interpretations. The aviation alert level remained at Orange.
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Previous news
Wed, 14 May 2014, 06:00
Shishaldin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 14 May-20 May 2014 (Continuing Activity)
AVO reported that during 14-20 May elevated surface temperatures at Shishaldin's summit were detected in satellite images, and minor steam emissions were observed in webcam images. A report from 16 May noted that dark ash-covered snow near the summit was visible on an unspecified day during the past week. Seismometers near the volcano detected brief explosion signals during 17-20 May. ... Read all
Wed, 7 May 2014, 06:00
Shishaldin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 7 May-13 May 2014 (Continuing Activity)
AVO reported that although cloud cover occasionally prevented web-cam and satellite observations of Shishaldin's summit area during 7-13 May, periods of elevated surface temperatures and minor steaming were observed. A report from 9 May noted that dark ash-covered snow near the summit was visible on an unspecified day during the past week. A continuous “tremor-like” signal detected during 0430-0630 on 13 May coincided with a distinct increase in surface temperatures, possibly indicating a Strombolian eruption. ... Read all
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