Monthly Archives: April 2009

Koryaksky, Kamchatka Peninsula, Russia

KVERT reported that seismic activity at Koryaksky was at background levels during 20-27 March. Gas plumes containing a small amount of ash rose to an altitude of 4 km (13,200 ft) a.s.l. and drifted S, SE, W and NW during … Continue reading

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Kilauea, Hawaii, USA

During 24-31 March, HVO reported that lava flowed SE from underneath Kilauea’s Thanksgiving Eve Breakout (TEB) and rootless shield complex through a lava tube system, reaching the Waikupanaha and Kupapa’u ocean entries. Daily thermal anomalies seen on satellite imagery suggested … Continue reading

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Karymsky, Russia

KVERT reported that seismic activity at Karymsky was elevated during 19-22 March and at background levels during 23-24 March. Based on interpretations of seismic data, ash plumes likely rose to an altitude of 2 km (6,600 ft) a.s.l. On 26 … Continue reading

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Fuego, Guatemala

On 27 and 30 March, INSIVUMEH reported that explosions from Fuego produced ash plumes that rose to altitudes of 4.1-4.8 km (13,500-15,700 ft) a.s.l. and drifted S and SW. Some explosions were accompanied by rumbling noises, shock waves detected 10 … Continue reading

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Colima, Mexico

During 25-29 and 31 March, white and gray plumes from Colima rose to altitudes of 3.9-4.6 km (12,800-15,100 ft) a.s.l. and occasionally drifted SW, SE, E, and NE. Source: Gobierno del Estado de Colima – “Reports provided courtesy of the … Continue reading

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Chaitén, Chile

SERNAGEOMIN reported that during 17-23 March Chaitén’s lava-dome complex continued to grow from an area that includes the central spines and part of Domo Nuevo 1. This was also the main area where collapses from unstable slopes caused block-and-ash flows. … Continue reading

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Batu Tara, Komba Island, Indonesia

Based on analysis of satellite imagery, the Darwin VAAC reported that during 25-27 March ash plumes from Batu Tara rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted about 30-110 km NW. Source: Darwin Volcanic Ash Advisory … Continue reading

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Barren Island, Andaman Islands, India

Based on analysis of satellite imagery, the Darwin VAAC reported that during 25-26 March ash plumes from Barren Island rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted about 110 km S. Source: Darwin Volcanic Ash Advisory … Continue reading

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Asama, Honshu, Japan

JMA reported weak incandescence from Asama on 23 March. Strong steam emissions were seen on 30 March by an observer in Maebashi, 50 km E. Sources: Japan Meteorological Agency (JMA), Yukio Hayakawa, personal communication – “Reports provided courtesy of the … Continue reading

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Reventador, Ecuador

The IG reported that seismicity from Reventador increased during 25-26 March. On 26 March, the seismic network detected an earthquake swarm consisting of long-period and hybrid events, interspersed with bands of harmonic tremor. Observers reported steam emissions with low ash … Continue reading

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