Worldwide Volcano News and Updates

KVERT reported that during 23-30 January a Strombolian and Vulcanian eruption at Klyuchevskoy continued. Incandescence at the summit was visible and bombs were ejected 200-300 m above the crater. Explosions generated ash plumes that rose to altitudes of 6-7 km (19,700-23,000 ft) a.s.l.; ashfall was reported in Klyuchi Village (30 km NNE) and near the Khapitsa River on 27 January, and in Kozyrevsk Village (50 km W) on 28 January. Read all

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In a special notice INSIVUMEH reported that on 28 January ash emissions originating from Pacaya's Mackenney Crater drifted 4 km S and SW. During field observations, scientists saw a defined central crater, 40-50 m in diameter, and ash emissions. Gas plumes rose from an area on the S flank. Read all

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On 30 January, GeoNet reported that water temperatures of Ruapehu's summit Crater Lake had been increasing since early December 2014, rising from 15 degrees Celsius to over 40. Similar temperatures were recorded in March 2011 and April 2014, before the lake cooled. Read all

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Based on statements from PVMBG, the Darwin VAAC reported that on 2 February an ash plume from Soputan rose to an altitude of 6.1 km (20,000 ft) a.s.l. A thermal anomaly was visible in satellite images; ash was not visible at the reported altitude, but possible ash was detected to the N at 3 km (10,000 ft) a.s.l. Read all

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The Tokyo VAAC reported that during 28 January-3 February plumes from Aira Caldera's Sakurajima volcano rose to altitudes of 1.5-3.3 km (5,000-11,000 ft) a.s.l. and drifted NE, E, SE, and S. On 1 February pilots observed ash plumes that rose to altitudes of 2.7-3.3 km (9,000-11,000 ft) a.s.l. Read all

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JMA reported that, based on seismicity and infrasound data, the eruption from Asosan's Nakadake Crater that began on 25 November 2014 continued intermittently during 26-30 January. Incandescent material was sometimes ejected onto the crater rim, and plumes rose 800 m above the crater. High-amplitude tremor continued. Read all

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During 27 January-3 February, IMO maintained Aviation Colour Code Orange due to continued activity at Bárdarbunga's Holuhraun eruptive fissure, with a lava-flow rate of about 100 cubic meters per second. Seismicity remained strong and local air pollution from gas emissions persisted. GPS measurements showed that subsidence continued. Read all

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SVERT reported that weak steam-and-gas emissions from Chirinkotan were detected in satellite images on 31 January. Cloud cover obscured views on the other days during 26 January-2 February. The Aviation Color Code remained at Yellow. Read all

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SVERT reported that satellite images over Snow, a volcano of Chirpoi, showed a weak thermal anomaly on 26 January. Cloud cover obscured views during 27 January-2 February. The Aviation Color Code remained at Yellow. Read all

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According to a news article, heavy rains on 22 January triggered lahars that descended Karangetang's flanks, overflowed ravines, and damaged some public and private buildings. Some traffic disruptions were also reported. Read all

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