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Pavlof reported activity

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EVENT SPECIFIC INFORMATION

Event Name : Pavlof 2014/11

Start:November 12, 2014 Observed

Lava flow: BibCard
Tephra plume: BibCard
"Fire", "Glowing", or incandescence: BibCard
Eruption Type:Explosive
ColHeight: 9100 m BibCard
MaxVEI: 1 BibCard
Other""

Description: On November 12, 2014, a ground observer in Cold Bay reported ash emissions from Pavlof up to 9,000 ft ASL (about 700 ft above the summit). Minor ash emissions were visible in the FAA-operated web camera in Cold Bay beginning around 1:50 UTC on 13 November (4:50 pm AKST on 12 November). AVO raised the Aviation Color Code and Volcano Alert Level to ORANGE/WATCH at 6:57 AKST, November 12.Tremor remained elevated on the 12th, 13th, and 14th, with lava fountaining and ash emissions.

On November 15th, AVO raised the Aviation Color Code/Volcano Alert Level to RED/WARNING, citing an increased ash plume to 25,000 ft, and intensifying seismic tremor. On November 16th, the ash plume reached more than 30,000 ft asl, and winds carried the ash northwest over the Bering Sea.

On November 16th, AVO lowered the Aviation Color Code/Volcano Alert Level to ORANGE/WATCH, due to an abrupt decrease in seismic tremor about 7 pm on November 15th, and a large decrease in ash emissions.

On November 25, AVO lowered the Aviation Color Code/Volcano Alert Level to YELLOW/ADVISORY, citing continued low seismicity and lack of any observations to suggest ongoing lava fountaining or ash emission.

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URL: www.avo.alaska.edu/volcanoes/activity.php
Page modified: March 30, 2017 14:36
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