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Diaporama
Bogoslof volcan
Submarine volcano 150 m / 492 ft
United States, Aleutian Islands, 53.93°N / -168.03°W
Condition actuelle: normal / en sommeil (1 sur 5)
Bogoslof webcams / données en temps réel | Reports
Bogoslof livres
Eruptions du volcan Bogoslof:
1992 
Style éruptif tipique:
explosive
Derniers séismes proches
Derniers images satellite
 

Bogoslof volcano news & activity updates:

Bogoslof volcano (Aleutian Islands): smaller explosions, new lava dome emplaced

jeudi juin 08, 2017 07:26 | AUTEUR : T

Two smaller explosive eruptions, each lasting no more than 2 minutes, occurred earlier today and yesterday (at 5:28 UTC on 8 June or 21:28 AKDT on 7 June, and 14:30 UTC / 6:30 am AKDT yesterday). Small ash and steam clouds were produced tht rose less than 10,000 ft (3 km).
The Alaska Volcano Observatory (AVO) reported yesterday evening that "a new lava dome has been observed in satellite data... It is located in the northern portion of the vent lagoon, has breached sea level, and is about 110 m across.
"A robust steam plume is visible in satellite data, and at 2250 UTC (14:50 AKDT) extended for 75 km to the south over the western end of Unalaska Island at an estimated altitude of less than 10,000 ft asl.

"Some past eruptions of Bogoslof have ended with the emplacement of a lava dome, but in other cases, lava effusion has been followed by additional explosions. If future explosions do occur, the resulting volcanic cloud could be more ash-rich than those that have occurred thus far in the sequence that began in 2016." (AVO)
Actualités précédentes
jeudi, juin 08, 2017
Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: ... [details]
Seismic signal of this afternoon's eruption at Bogoslof (recorded on MSW station on Makushin volcano about 60 km to the E (AVO)
lundi, juin 05, 2017
The volcano remains restless. During the past days, at least two smaller explosive eruptions occurred. The Aviation Color Code remains at ORANGE. ... [details]
jeudi, juin 01, 2017
Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: ... [details]
Bogoslof's eruption column with the white steam head entering the lower stratosphere on 28 May 2017 (image: Dave Schneider, USGS Volcanoes/AVO
mercredi, mai 31, 2017
The Alaska Volcano Observatory published two spectacular satellite images (attached) showing the eruption column of the volcano's large explosion on 28 May (22:34 UTC). ... [details]
mercredi, mai 31, 2017
Volcanic Ash Advisory Center Anchorage (VAAC) issued the following report: ... [details]

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