Semisopochnoi volcano (Aleutian Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 27 April-3 May 2022 (Continuing Activity)
Thu, 5 May 2022, 06:43
06:43 AM | BY: VNThe 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 27 April-3 May 2022. Smithsonian Institution and US Geological Survey.
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Previous news
Fri, 29 Apr 2022, 07:04
AVO reported that low-level eruptive activity at Semisopochnoi's North Cerberus cone continued during 19-26 April. Periods of seismic tremor were occasionally detected and small explosions were recorded in seismic data during 19-20 April. Minor, low-level, plumes with low ash content were visible in webcam images through each day during 19-20 April, with occasional more energetic ash plumes. ... Read all
Wed, 20 Apr 2022, 19:08
AVO reported that low-level eruptive activity at Semisopochnoi's North Cerberus cone continued during 12-19 April. Periods of seismic tremor were detected daily and occasional small explosions were recorded in seismic and regional infrasound data on most days. Weather cloud cover often hindered webcam and satellite views; minor, low-level ash plumes were visible in webcam images during 16-19 April. ... Read all
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