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Bogoslof volcano
Submarine volcano 150 m / 492 ft
United States, Aleutian Islands, 53.93°N / -168.03°W
Current status: erupting (4 out of 5)
Bogoslof webcams / live data
Bogoslof volcano books
Bogoslof volcano eruptions:
2016-17, 1992, 1951 (?), 1931 (?), 1926-28, 1913, (?), 1909-10, 1908 (?), 1907, 1906, 1883, 1806, 1786
Typical eruption style:
Last earthquakes nearby
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Bogoslof volcano news & activity updates:

Bogoslof volcano (Aleutian Islands): increased earthquake activity, alert level raised

Tuesday Apr 18, 2017 13:35 PM | BY: T

Seismic signal from Bogoslof volcano, MSW station (on Makushin 60 km to the east from Bogoslof)
Seismic signal from Bogoslof volcano, MSW station (on Makushin 60 km to the east from Bogoslof)
The Alaska Volcano Observatory (AVO) detected an increase in earthquake activity at the volcano since 15 April around 15:01 AKST / 23:01 UTC. Although no evidence of new eruptive activity has been found so far, the alert level of the volcano was raised again.

"At this time there has been no evidence of renewed eruptive activity from infrasound, lightning, or satellite data. Similar sequences of earthquakes have preceded some of the explosive events during the ongoing unrest.
Because this uptick in seismicity increases the likelihood of future explosive activity, AVO is raising the Aviation Color Code for Bogoslof to ORANGE and the Volcano Alert Level to WATCH." (AVO)
Previous news
Thursday, Apr 06, 2017
No more activity has been detected at the volcano during the past 3 weeks (since 13 Mar) and therefore the alert level was lowered to "Yellow". ... [more]
Monday, Mar 13, 2017
Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: ... [more]
Lightnings detected in the ash plume within one hour shortly after the eruption (WWLLN / AVO)
Wednesday, Mar 08, 2017
After two weeks of relative calm, another large explosion has occurred a short time ago at the volcano, showing that the recent eruptive phase is not over yet. ... [more]
Wednesday, Mar 08, 2017
Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: ... [more]
February 19 Bogoslof eruption plume as seen from Unalaska Island, 53 miles ESE of Bogoslof volcano. Photo taken from helicopter during fieldwork by AVO geologists at 5:22PM, approximately 14 minutes after the start of the eruption. (image: Janet Schaefer / AVO)
Monday, Feb 20, 2017
More explosions occurred at the volcano this morning. The Alaska Volcano Observatory detected a "series of short, explosive eruptions that started at 17:08 AKST local time (02:08 February 20 UTC) and lasted until 17:45 AKST (02:45 February 20 UTC). ... [more]

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