Recent volcano eruption 201611/18/2023 PVMBG reported that the eruption at Dukono was ongoing during 1-7 November. Source: Japan Meteorological Agency (JMA)ĭukono | 1 November-7 November 2023 | Continuing Activity Cite this Report The Alert Level remained at 3 (on a 5-level scale), and the public was warned to stay 2 km away from both craters. Ash plumes rose as high as 1.8 km above the crater rim and drifted N, E, and SE. There was a total of 10 eruptive events recorded during 30-31 October and 1-2 November. Sulfur dioxide emissions averaged 1,300 tons per day on 2 November. JMA reported ongoing activity at Minamidake Crater (Aira Caldera’s Sakurajima volcano) during 30 October-6 November, with incandescence at the crater observed nightly. Source: Icelandic Meteorological Office (IMO)Īira | 1 November-7 November 2023 | Continuing Activity Cite this Report Thorbjorn and Sýlingafell during 6-7 November. During 4-7 November there were around 2,200 earthquakes, which were located between Mt. There was no indication of magma migrating to the surface. The signals were located along previously known faults, aligned in a N-S direction W of Mt. Seismicity increased for early on 3 November, and then notably decreased around 1730. Over 10,500 earthquakes were detected during 25 October-1 November, out of which more than 26 exceeded M 3 and the largest was a M 4.5 recorded at 0818 on 25 October. Data models indicated that the volume change associated with the uplift was double that of the four previous inflation events recorded during 2020-2022 the inflow of magma was estimated at 7 cubic meters per second, or four times greater than the highest inflow rate recorded during the previous events. The rate of inflation was fairly constant though it began to accelerate on 3 November. A total of 7 cm of uplift was recorded in satellite data and by the Global Navigation Satellite System (GNSS) station near Mt. IMO reported that increased seismicity and deformation at the Reykjanes Peninsula were ongoing during 1-7 November and indicated magma accumulation at depths of 4-5 km in an area NW of Mt. Reykjanes | 1 November-7 November 2023 | New Activity / Unrest Cite this Report Sources: Kamchatkan Volcanic Eruption Response Team (KVERT), Kamchatka Volcanological Station, Simon Carn, NewsBreak, Unalaska Community Broadcasting, CHEK Media and drifted almost 260 km E and ENE during 3 and 5-6 November. Collapses of material and phreatic explosions from hot lava interacting with ice and snow along the Apakhonchichsky drainage generated ash plumes that rose 5.5-8.2 km (18,000-26,900 ft) a.s.l. Eruptive activity at the summit continued during 3-4 November, producing ash plumes that rose as high as 5.5 km (18,000 ft) a.s.l. The main plume from the most intense phase of the eruption had drifted more than 3,000 km E and SE and contained about 0.1 teragram (100,000 tonnes) of sulfur dioxide based on satellite data. The Aviation Color Code was lowered to Orange. According to news articles the ash plumes caused some flight cancellations and disruptions in the Aleutians, British Columbia, and along flight paths connecting the Unites States to Japan and South Korea.Īctivity began to wane at around 2300 on 1 November and by 2000 on 2 November ash plumes were rising only as high as 6.5 km (21,300 ft) a.s.l. Lahars descended the Studenoy River, blocking the Kozyrevsk-Petropavlovsk federal highway, and descended the Krutenkaya River, blocking the road E of Klyuchi. According to Kamchatka Volcanological Station observers pyroclastic flows descended the flanks. Lava fountains rose as high has 1 km above the summit and fed lava flows that descended the Apakhonchichsky, Krestovsky, and Kozyrevsky drainages on the SE, S, and W flanks. and drifted as far as 2,255 km ESE during 31 October-1 November. Ash plumes rose as high as 14 km (45,900 ft) a.s.l. Klyuchevskoy | 1 November-7 November 2023 | New Activity / Unrest Cite this ReportĪn intense eruption at Klyuchevskoy began on 31 October, prompting KVERT to raise the Aviation Color Code to Red (the highest level on a four-color scale). Floating, brown-colored pumice was present in the water around the island. Explosions occurred about every one minute that ejected dark material and incandescent material about 800 m above the vent. During an overflight on 3 November observers photographed the island and noted that a 169-m-high cone had formed at the SSE end according to news sources. A 2 November Sentinel satellite images showed a thermal anomaly at the SE end of the island which was elongated to the NNW-SSE. The eruption at Ioto (Iwo-jima), at a vent located about 1 km off the SE coast of Okinahama, continued during 1-3 November. Ioto | 1 November-7 November 2023 | New Activity / Unrest Cite this Report Smithsonian / USGS Weekly Volcanic Activity Report for the week of 1 November-7 November 2023Īll times are local unless otherwise stated.
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