VolcanoWorld News » Volcano Activity Reports

Suwanose-Jima, Ryukyu Islands, Japan

Robert Peckyno — Mon, 12 Oct 2009 08:37:02 +0000

Based on information from JMA, the Tokyo VAAC reported explosions from Suwanose-jima on 1 October. A plume rose to an altitude of 1.5 km (5,000 ft) a.s.l. and rifted W.

Sources: Tokyo Volcanic Ash Advisory Center (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Sangay, Ecuador

Robert Peckyno — Mon, 12 Oct 2009 08:35:31 +0000

The Washington VAAC reported that on 4 October a pilot saw an ash plume from Sangay drifting W at altitudes of 5.2-7.6 km (17,000-25,000 ft) a.s.l. Meteorological clouds prevented satellite views of the area. No additional reports of the ash plume were received by the VAAC.

Source: Washington Volcanic Ash Advisory Center (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Reventador, Ecuador

Robert Peckyno — Mon, 12 Oct 2009 08:34:27 +0000

Based on information from IG, the Washington VAAC reported that on 4 October an ash plume from Reventador drifted W. Ash was not seen in satellite imagery, although meteorological clouds were present. An occasional thermal anomaly was seen, however.

Source: Washington Volcanic Ash Advisory Center (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Rabaul, Papua New Guinea

Robert Peckyno — Mon, 12 Oct 2009 08:33:04 +0000

RVO reported that during 25 September-1 October gray ash plumes from Rabaul caldera’s Tavurvur cone rose 2 km above the crater. Ashfall was reported in Rabaul town (3-5 km NW) and surrounding areas. Occasionally, incandescence from the summit crater was seen at night and incandescent lava fragments were ejected from the crater. Based on analyses of satellite imagery, the Darwin VAAC reported that on 6 October an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 55 km NW.

Sources: Rabaul Volcano Observatory (RVO), Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Popocatépetl, Mexico

Robert Peckyno — Mon, 12 Oct 2009 08:31:08 +0000

CENAPRED reported that during 3-6 October emissions of steam and gas from Popocatépetl contained slight amounts of ash.

Sources: Centro Nacional de Prevencion de Desastres (CENAPRED) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Langila, New Britain, Papua New Guinea

Robert Peckyno — Mon, 12 Oct 2009 08:29:52 +0000

Based on analyses of satellite imagery, the Darwin VAAC reported that on 30 September an ash plume from Langila drifted 260 km NW at an altitude of 4.3 km (14,000 ft) a.s.l. On 5 October, a diffuse ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 185 km N.

Source: Darwin Volcanic Ash Advisory Centre (VAAC) - “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Kilauea, Hawaii, USA

Robert Peckyno — Mon, 12 Oct 2009 08:25:50 +0000

During 30 September-6 October, 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 ocean entry. Thermal anomalies detected in satellite images revealed active surface lava flows on top of the pali. The vent in Halema’uma’u crater continued to produce a diffuse white plume that drifted SW. Small amounts of occasional fresh ash were retrieved from collection bins placed near the plume. During 30 September and 2, 4, and 5 October, a lava pond within the vent, about 200 m below the Halema’uma’u crater floor, rose and fell, circulated, and weakly spattered. Preliminary measurements indicated that the sulfur dioxide emission rate at the summit remained elevated; 410, 650, and 480 tonnes per day were measured on 30 September, 1 and 2 October, respectively. The 2003-2007 average rate was 140 tonnes per day.

Source: US Geological Survey Hawaiian Volcano Observatory (HVO) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Dukono, Halmahera, Indonesia

Robert Peckyno — Mon, 12 Oct 2009 08:24:16 +0000

Based on analyses of satellite imagery, the Darwin VAAC reported that on 2 October an ash plume from Dukono rose to an altitude of 2.7 km (9,000 ft) a.s.l. and drifted 75 km NE. On 6 October, an ash plume rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 55 km NE.

Source: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Batu Tara, Komba Island, Indonesia

Robert Peckyno — Mon, 12 Oct 2009 08:23:19 +0000

Based on analyses of satellite imagery, the Darwin VAAC reported that during 30 September-3 October and 5-6 October ash plumes from Batu Tara rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted 25-75 km W, NW, and N.

Source: Darwin Volcanic Ash Advisory Centre (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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Soufriére Hills, Montserrat, West Indies

Robert Peckyno — Mon, 12 Oct 2009 08:22:00 +0000

MVO reported that a short volcano-tectonic earthquake swarm from Soufrière Hills lava dome was detected at 2100 on 4 October. A period of tremor and vigorous ash venting followed about an hour later. The resulting ash plume drifted WNW across the island and out to sea, causing ashfall in Old Towne and Olveston. The seismic signals indicated no explosive activity or pyroclastic flows, but only two rockfalls after the ash-venting event. During midnight to 0600 on 5 October, intermittent ash venting produced ash plumes that drifted WNW. Two more “ash venting” events occurred at 1035 and 1325, without precursory seismicity, producing ash plumes that rose to altitudes of 3-4.6 km (10,000-15,000 ft) a.s.l. Ash fell S of inhabited areas. Based on information from MVO and analyses of satellite imagery, the Washington VAAC reported that on 6 October several ash clouds rose to altitudes of 3.7-5.5 km (12,000-18,000 ft) a.s.l. and drifted W.

Sources: Montserrat Volcano Observatory (MVO), Washington Volcanic Ash Advisory Center (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the US Geological Survey’s Volcano Hazards Program.”

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