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Semisopochnoi volcano (Aleutian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 23 February-1 March 2022 (Continuing Activity)

jeu., 3 mars 2022, 00:57
00:57 AM | AUTEUR : VN
AVO reported that low-level eruptive activity at Semisopochnoi's North Cerberus cone continued during 23 February-1 March. Seismicity was elevated with low-level tremor and daily small explosions. Weather clouds sometimes prevented satellite and webcam views of the volcano, though low ash clouds from the summit were visible on most days.
Ash deposits on the N flank were visible in a few webcam images. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch.

Source: US Geological Survey Alaska Volcano Observatory (AVO)
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From: Global Volcanism Program, 2022. Report on Semisopochnoi. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 23 February-1 March 2022. Smithsonian Institution and US Geological Survey.

Actualités précédentes

mer., 23 févr. 2022, 18:47

Semisopochnoi volcano (Aleutian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 16 February-22 February 2022 (Continuing Activity)

AVO reported that low-level eruptive activity at Semisopochnoi's North Cerberus cone continued during 16-22 February. Seismicity was elevated with low-level tremor, and occasional explosions, detected almost daily in both seismic and infrasound data. Weather clouds prevented satellite and webcam views of the volcano. ... Read all
mer., 16 févr. 2022, 12:45

Semisopochnoi volcano (Aleutian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 9 February-15 February 2022 (Continuing Activity)

AVO reported that low-level eruptive activity at Semisopochnoi's North Cerberus cone continued during 9-15 February. Seismicity was elevated with low-level tremor, and several small explosions were detected daily in both seismic and infrasound data, through 13 February. Steam and low-level ash emissions likely occurred daily, though due to weather clouds they were not confirmed in satellite and webcam images during 13-14 February. ... Read all
Montrer plus
Stratovolcano 1221 m / 4,006 ft
United States, Aleutian Islands, 51.93°N / 179.58°E
Condition actuelle: Activité petite ou avertissement éruption imminente (3 sur 5) Eruptions du volcan Semisopochnoi:
2021, 2020, 2019, 2018, 1987
Style éruptif tipique
unspecified
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