Monthly Archives: December 2007

Fuego, Guatemala

Based on observations of satellite imagery, the Washington VAAC reported that ash plumes from Fuego rose to an altitude of 5.2 km (17,000 ft) a.s.l. drifted SW on 21 December. Gas or ash plumes were seen on satellite imagery on … Continue reading

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Concepción, Island of Ometepe, Nicaragua

According to a news article, INETER reported that an explosion from Concepción on 20 December was followed by gas-and-ash plumes. Ashfall was reported in nearby communities. Source: Associated Press – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and … Continue reading

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Colima, Mexico

Steam and steam-and-ash plumes from Colima were observed rising to altitudes of 4.3-4.7 km (14,100-15,400 ft) a.s.l. during 20-23 and 25 December. Plumes drifted N on 21 December. Source: Gobierno del Estado de Colima – “Reports provided courtesy of the … Continue reading

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Barren Island, Andaman Islands, India

Based on observations of satellite imagery, the Darwin VAAC reported that an ash plume from Barren Island rose to an altitude of 1.5 km (5,000 ft) a.s.l. and drifted S on 23 December. Source: Darwin Volcanic Ash Advisory Centre (VAAC) … Continue reading

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Bagana, Papua New Guinea

Based on observations of satellite imagery and reports from the RVO, the Darwin VAAC reported that a plume from Bagana rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted SW on 21 December. An ash-and-steam plume was … Continue reading

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Anatahan, Mariana Islands, United States

Low-level tremor at Anatahan continued during 14-21 December. On 14 December, the Washington VAAC reported that a steam plume was visible on satellite data.The Volcanic Alert Level remained at Advisory and the Aviation Color Code remained at Yellow. Source: Emergency … Continue reading

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Ulawun, Papua New Guinea

Based on observations of satellite imagery, the Darwin VAAC reported that an ash-and-steam plume from Ulawun drifted W on 25 December. Source: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the … Continue reading

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Shiveluch, Russia

KVERT reported that seismic activity at Shiveluch was above background levels during 14-21 December. Based on seismic interpretation, a series of explosions during 18-19 December produced ash plumes that rose to altitudes of 6.5-8.7 km (21,300-29,000 ft) a.s.l. Ash plumes … Continue reading

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Masaya, Nicaragua

Based on observations of satellite imagery, the Washington VAAC reported that a small and diffuse plume from Masaya, possibly containing ash, drifted SW on 24 December. Changes in seismic signals correlated with the emission. Source: Washington Volcanic Ash Advisory Center … Continue reading

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Gorely, Kamchatka, Russia

On 25 December, KVERT reported that the Alert Level for Gorely was raised to Yellow due to an increase in seismicity and visual observations. Seismicity increased on 22 December and remained slightly elevated above background levels during 22-25 December. A … Continue reading

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