Monthly Archives: July 2008

Batu Tara, Komba Island, Indonesia

Based on observations of satellite imagery, the Darwin VAAC reported that during 24-29 July ash plumes from Batu Tara rose to an altitude of 1.5-3.7 km (5,000-12,000 ft) a.s.l. and drifted WSW, W, NW, and N. Source: Darwin Volcanic Ash … Continue reading

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Soufriére Hills, Montserrat, West Indies

MVO reported no evidence of lava-dome growth at Soufrière Hills during 18-26 July. At least six eruptive events occurred during 20-22 July, each producing ash plumes that rose to altitudes of 2 km (6,000 ft) a.s.l. or lower. The ash … Continue reading

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Reventador, Ecuador

The IG reported that the number of earthquakes per day from Reventador increased during July and were the greatest on 24 and 25 July. At 1500 on 27 July, continuous seismic tremor was registered and was followed by observations of … Continue reading

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Okmok, Fox Islands, USA

AVO reported that on 23 July, seismicity from Okmok changed from episodic volcanic tremor to nearly continuous mid-level volcanic tremor. Although cloud cover obscured views of Okmok, previously emitted ash plumes were observed to the ESE. On 24 July, a … Continue reading

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Manam, Papua New Guinea

Based on observations of satellite imagery and information from RVO, the Darwin VAAC reported that on 29 July low-level plumes from Manam rose to an altitude 2.4 km (8,000 ft) a.s.l. and drifted WNW. Source: Darwin Volcanic Ash Advisory Centre … Continue reading

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Llaima, Chile

SERNAGEOMIN reported that cloud cover prevented observations of Llaima during 22-23 July. On 24 July a bluish gas was emitted from a pyroclastic cone in the main crater and steam plumes rose from the W margin of the crater. Later … Continue reading

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Karymsky, Russia

KVERT reported that seismic activity at Karymsky was above background levels on 18, 19, and 23 July and at background levels during 20-22 and 24-25. Explosive activity that produced ashfall was seen by area volcanologists. Interpretation of the seismic data … Continue reading

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Dukono, Halmahera, Indonesia

Based on observations of satellite imagery, the Darwin VAAC reported that during 25-27 July ash plumes from Dukono rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted W. Source: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports … Continue reading

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Cleveland, Chuginadak Island

AVO reported that satellite views of Cleveland were hindered on 23 July due to cloud cover. On 24 July, a low-level ash plume and a strong thermal anomaly were noted near the summit. The thermal anomaly suggested the presence of … Continue reading

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Chikurachki, Kuril Islands, Russia

Based on observations of satellite imagery, KVERT reported that on 29 July an ash plume from Chikurachki drifted more than 30 km WSW. The level of seismicity was unknown because Chikurachki lacks dedicated seismic instruments. The Level of Concern Color … Continue reading

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