Worldwide Volcano News and Updates

CVGHM reported that the number of deep and shallow volcanic earthquakes at Guntur increased during 15-21 August; seismicity declined after that period. On 30 August at 0820 seismicity again increased, characterized by continuous tremor that lasted until 1450. At 1600 CVGHM raised the Alert Level to 2 (on a scale of 1-4) and reminded residents and visitors not to approach the active crater within a 2-km radius. Read all

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CVGHM reported that observers at a post 6 km away from Iliwerung reported that diffuse fumarolic emissions from the crater were visible during the mornings from 19 August to 1 September. Seismicity decreased on 19 August and remained at normal levels. On 2 September the Alert Level was lowered to 1 (on a scale of 0-4). Read all

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Based on observations from the post in Salili, CVGHM reported that, although Karangetang was sometimes covered in fog during 1 August-2 September, white plumes were seen rising as high as 500 m above the main crater and as high as 300 m above Crater II. Incandescence from the crater was often observed at night. Avalanches began traveling down the Batuawang drainage on 2 September and then intensified the next day. Read all

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KVERT reported that moderate seismic activity at Kliuchevskoi was detected during 23-30 August. A video camera recorded incandescence from the summit at night and gas-and-steam plumes containing minor amounts of ash. A large thermal anomaly from the lava dome was detected in satellite images. Read all

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INSIVUMEH reported that during 28-29 August abundant degassing at Santa María's Santiaguito lava-dome complex generated gas plumes that rose 2.7 km. During 29-31 August explosions produced ash plumes that rose 700-900 m and sometimes drifted SW. Block avalanches descended the S and E flanks. Read all

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According to the Tokyo VAAC, the JMA reported that on 28 August pilots observed ash plumes from Suwanose-jima that rose to altitudes of 3-3.7 km (10,000-12,000 ft) a.s.l. and drifted E and NW. Explosions during 28-29 August generated ash plumes that rose to altitudes of 1.8-2.1 km (6,000-7,000 ft) a.s.l. and drifted NE. Read all

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IGP reported six phreatic explosions from Ubinas during 1-3 September. The series of explosions decreased in both energy and length of the tremor signal associated with each explosion; tremor lasted 75 minutes for the first explosion and 5-10 minutes for the last one. Most of the explosions generated ash plumes that rose 1.5-2 km above the crater. Read all

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Based on analyses of satellite imagery and wind data, the Darwin Volcanic Ash Advisory Centre (VAAC) reported that during 2-3 September ash plumes from Batu Tara rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted 75 km W. Read all

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SVERT reported that a thermal anomaly from Chirinkotan was detected in satellite images on 1 September. The Aviation Color Code remained at Yellow. Read all

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SVERT reported that a thermal anomaly from Snow, a volcano of Chirpoi, was detected in satellite images on 1 September. The Aviation Color Code remained at Yellow. Read all

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