Monthly Archives: May 2008

Eruption Column Demonstration

Posted on May 30, 2008 by Robert Peckyno

We were recently shown a paper by Karen S. Harpp, Alison M. Koleszar, and L. Dennis Geist that presented instructions for the safe demonstration of an explosive volcanic eruption.   In less than a second, the explosion carries up to 20 … Continue reading →

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Ubinas, Peru

Posted on May 30, 2008 by Robert Peckyno

Based on SIGMET reports, the Buenos Aires VAAC reported that during 22-24 May ash plumes from Ubinas rose to altitudes of 4.9-7.9 km (16,000 and 26,000 ft) a.s.l. and drifted S, E, NE, and SE. On 26 May, a pilot … Continue reading →

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Tungurahua, Ecuador

Posted on May 30, 2008 by Robert Peckyno

The IG reported that although visual observations were occasionally limited due to cloud cover during 21-27 May, ash and ash-and-steam plumes, often generated by explosions from Tungurahua, were spotted and rose to altitudes of 5.8-9 km (19,000-29,500 ft) a.s.l. Ash … Continue reading →

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Soufriére Hills, Montserrat, West Indies

Posted on May 30, 2008 by Robert Peckyno

MVO reported that activity at Soufrière Hills decreased slightly during 17-23 May. On 23 May, several pulses of ash venting from Gages vent to the W produced ash plumes to an altitude of approximately 1.8 km (5,900 ft) a.s.l. and … Continue reading →

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Shiveluch, Russia

Posted on May 30, 2008 by Robert Peckyno

KVERT reported that seismic activity at Shiveluch was at background levels during 15-17 and 21 May and above background levels the other days during 16-23 May; gas-and-ash explosions may have occurred on 18, 19, and 20 May. According to video … Continue reading →

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Santa María, Guatemala

Posted on May 30, 2008 by Robert Peckyno

INSIVUMEH reported explosions from Santa María’s Santiaguito lava dome complex during 22-27 May. Resultant ash plumes seen during breaks in cloud cover rose to altitudes of 4.1-4.4 km (13,500-14,400 ft) a.s.l. and drifted S and SW. Ashfall was reported in … Continue reading →

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Sakura-Jima, Japan

Posted on May 30, 2008 by Robert Peckyno

Based on information from JMA, the Tokyo VAAC reported that on 22 May an eruption plume from Sakura-jima rose to altitudes of 2.4 km (8,000 ft) a.s.l. and drifted NE. An explosion was reported on 24 May. Source: Tokyo Volcanic … Continue reading →

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Rabaul, Papua New Guinea

Posted on May 30, 2008 by Robert Peckyno

RVO reported that during 21-28 May ash plumes from Rabaul caldera’s Tavurvur cone rose to an altitude of 1.2 km (3,900 ft) a.s.l. and drifted N. Intermittent roaring noises were heard and ashfall was reported in Rabaul Town (3-5 km … Continue reading →

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Kilauea, Hawaii, USA

Posted on May 30, 2008 by Robert Peckyno

Based on observations during helicopter overflights, visual observations from HVO and National Park Service (NPS) crews, and web camera views, HVO reported that during 21-27 May lava flowed SE through a lava tube system underneath Kilauea’s Thanksgiving Eve Breakout (TEB) … Continue reading →

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Karymsky, Russia

Posted on May 30, 2008 by Robert Peckyno

KVERT reported that seismic activity at Karymsky was slightly above background levels on 15, 16, and 21 May and at background levels the other days during 16-23 May. Gas-and-ash explosions that produced plumes to an altitude of 3.4 km (11,200 … Continue reading →

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