Wed, 31 Jan 2018, 06:00 KVERT reported that an ash plume from Karymsky was identified in satellite images drifting 80 km NE on 27 January. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Read all

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Wed, 31 Jan 2018, 06:00Based on observations by volcanologists in Severo-Kurilsk (Paramushir Island), about 7 km E of Ebeko, explosions during 26-27 and 29-31 January generated ash plumes that rose as high as 2.5 km (8,200 ft) a.s.l. Ash fell in Severo-Kurilsk on 29 January. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). Read all

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Wed, 31 Jan 2018, 06:00 Based on analyses of satellite imagery, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 31 January-6 February ash plumes from Dukono rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted NE, E, and ESE. Read all

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Wed, 31 Jan 2018, 06:00AVO reported that unrest at Cleveland continued during 31 January-6 February, though nothing significant was detected in seismic or infrasound data. Moderately elevated surface temperatures were identified in satellite images during 30-31 January; cloudy weather prevented observations the rest of the week. The Aviation Color Code remained at Orange and the Volcano Alert Level remained at Watch. Read all

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Wed, 31 Jan 2018, 06:00 JMA reported that very small events occurred at Minamidake crater (at Aira Caldera's Sakurajima volcano) on 1 and 3 February. Crater incandescence from the summit crater was visible during 2-3 February. The Alert Level remained at 3 (on a 5-level scale). Read all

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Wed, 31 Jan 2018, 06:00On 2 February SNET reported that seismicity at San Miguel was decreasing, along with a decrease in emissions. RSAM values fluctuating between 63 and 114 units; normal values are between 50 and 150. Small pulses of gas near the crater rim were visible. Read all

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Wed, 31 Jan 2018, 06:00 PHIVOLCS reported that during 31 January-6 February daily activity at Mayon continued to be characterized by lava effusion from the summit crater, rockfalls, pyroclastic flows (31 January-1 February), ash and steam emissions, advancing lava flows on the flanks, and weak and sporadic lava fountains. Numerous rockfall events were generated by the growing and collapsing summit lava dome and from the front and margins of advancing lava flows. On 31 January pyroclastic flows traveled as far as 2 km in the Mi-isi (S), Basud (E), and Bonga (SE) drainages. Read all

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Wed, 31 Jan 2018, 06:00In a VONA issued on 2 February, PVMBG reported an eruption at Karangetang, characterized by crater incandescence and an ash plume that rose 600 m. The Aviation Color Code was raised from Unassigned to Yellow. Read all

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Wed, 31 Jan 2018, 06:00 RVO reported that the eruption at Kadovar continued during 31 January-1 February at a low level. Sulfur dioxide emissions and seismicity had both decreased. Dense white vapor plumes rose 100 m from Main Crater and drifted SE. Read all

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Wed, 31 Jan 2018, 06:00INSIVUMEH reported that the first Strombolian eruption at Fuego in 2018 began on 31 January, after a thermal anomaly was detected in satellite images the day before. Explosions produced ash plumes that rose 1.5 km above the crater and drifted 20 km SW. Lava fountains rose 300-500 m, and fed lava flows that traveled 800 m W in the Seca (Santa Teresa) drainage and 600 m in Las Lajas (SE) and Honda (E) drainages. Read all

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