Monthly Archives: July 2008

Chaitén, Chile

SERNAGEOMIN reported that clouds obscured camera views of Chaitén’s eruption plume on 21 and 22 July. The E-drifting eruption plume was weaker when observed on 23 July and only rose to an altitude of less than 2 km (6,600 ft) … Continue reading

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Anatahan, Mariana Islands, United States

The USGS reported that seismic tremor from Anatahan slowly increased during 16-26 July. A diffuse sulfur-dioxide plume drifted W on 17 July. According to a Washington VAAC report a low-level plume possibly containing ash drifted 50 km NW on 26 … Continue reading

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Ape Cave Online

  We recently visited the Ape Cave Lava Tube under Mount Saint Helens in Washington, US.   Having recently just recoded the Ape Cave tour below, I wanted to get some good new pictures from inside.   I have posted them all … Continue reading

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Tungurahua, Ecuador

The IG reported that during 15-22 July, explosions from Tungurahua were detected by the seismic network. Although clouds occasionally inhibited visual observations, steam and ash-and-steam plumes were spotted and rose to altitudes of 7-10 km (23,000-32,800 ft) a.s.l. and drifted … Continue reading

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Mount St. Helens, Washington, USA

On 10 July, CVO lowered the Volcano Alert Level for Mount St. Helens to Normal and the Aviation Color Code to Green, following the cessation of lava-dome growth in late January and about five months with no signs of renewed … Continue reading

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Soufriére Hills, Montserrat, West Indies

MVO reported no evidence of lava-dome growth at Soufrière Hills during 11-18 July. Seismic activity remained low. The E talus slope continued to erode, producing minor rockfalls that descended into the Tar River Valley. Following a small swarm of volcano-tectonic … Continue reading

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Shiveluch, Russia

KVERT reported that seismic activity at Shiveluch was slightly above background levels during 11-18 July and possibly indicated ash explosions up to 4.5 km (14,800 ft) a.s.l. on 17 July. Moderate fumarolic activity was seen on 13 and 15 July. … Continue reading

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Rabaul, Papua New Guinea

RVO reported that during 12-18 July, ash plumes from Rabaul caldera’s Tavurvur cone drifted NW and W. Ashfall was reported in areas downwind including significant accumulation in Rabaul town (3-5 km NW). Source: Ima Itikarai, Rabaul Volcano Observatory (RVO) – … Continue reading

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Pacaya, Guatemala

INSIVUMEH reported that during 9-16 July, Strombolian activity from Pacaya’s MacKenney cone was mainly characterized by explosions approximately 2-3 minutes apart. Pyroclastic material was ejected about 25 m above the crater. Lava flowed 100-200 m down the NW flank and … Continue reading

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Kilauea, Hawaii, USA

Based on visual observations from HVO crews, video footage, pilot reports, and web camera views, HVO reported that during 16-22 July, lava flowed SE through a lava tube system from underneath Kilauea’s Thanksgiving Eve Breakout (TEB) and rootless shield complex. … Continue reading

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