Bogoslof volcano news & activity updates:
Bogoslof volcano (Aleutian Islands): large explosive eruption early on 24 June, ash to 36,000 ft altitude
Sat, 24 Jun 2017, 08:45
08:45 AM | BY: T
Seismic signal of this morning's eruptions at Bogoslof (recorded on MSW station on Makushin volcano about 60 km to the E (AVO)
Model an ash plume from Bogoslof as of this morning (AVO)
The main pulse of the eruption which lasted about 10 minutes began at 00:49 UTC (16:49 local time) this morning and generated an ash and steam plume that quickly rose to 36,000 ft (12 km) altitude as pilots reported that were en route in the area and saw the cloud.
The ash plume moved east, passing over Akutan and the North Pacific Ocean before dissipating. No ash falls were reported from ground locations.
After the main explosion, 4 additional minor events occurred at 3:18-3:24 UTC, 4:13-4:21 UTC, 5:04-5:12 and 5:52-5:55 UTC. Due to cloud cover, there were no direct observations, meaning that the additional ash plumes did not reach more than 28-30,000 ft altitude.
The Aviation Color Code of Bogoslof was raised to RED. The volcano observatory (AVO) mentions that the "volcano remains at a heightened state of unrest and in an unpredictable condition. Additional explosions producing high-altitude volcanic clouds could occur at any time."
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- Information about: Bogoslof volcano
Previous news
Tue, 13 Jun 2017, 08:44
After a pause about approx. 2 days with little detected activity since the large explosion on 10 June, a new series of relatively strong explosions began early today at 1:47 UTC 13 June (17:47 local time AKDT June 12). At least two larger pulses of activity occurred, each lasting 10-30 minutes and producing ash plumes up to 25,000 ft (7.5 km) altitude that dissipated within 30 minutes. ... read all
Sun, 11 Jun 2017, 12:05
An explosive eruption occurred from about 3:18 to 5:28 local time AKDT (11:18 to 13:28 UTC) on 10 June. This sequence began with a series of short infrasound signals and then, starting at about 4:16 AKDT (12:16 UTC), transitioned into several minutes-long continuous seismic and infrasound tremor signals. ... read all
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