Bogoslof volcano (Aleutian Islands): new significant explosive eruption, alert level back to red
Fri, 17 Feb 2017, 21:16 | BY: T
Lightings detected near Bogoslof volcano during the past hour (image: WWLLN / AVO)
After a pause of about 4 days, seismic activity rapidly picked up this afternoon and a new eruptive phase began at 18:55 UTC (09:55 AKST local time), the Alaska Volcano Observatory reported a short time ago.
Preliminary satellite data show an ash cloud, and also detected a large number of lightnings west of the volcano (lightnings typically occur within large ash plumes during explosive eruptions).
The Aviation Color Code was raised again to RED and Bogoslof volcano's Alert level to WARNING.
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Previous news
Wed, 15 Feb 2017, 06:00
Bogoslof volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 15 February-21 February 2017 (Continuing Activity)
AVO reported that during 15-16 February cloud cover prevented satellite views of Bogoslof; no other data indicated eruptive activity. At 0955 on 17 February seismic data indicated the beginning of an explosive event, prompting AVO to raise the Aviation Color Code (ACC) to Red and the Volcano Alert Level (VAL) to Warning. Individual pulses of seismicity was recorded until 1140, and then afterwards seismicity was low. ... Read all
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