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Daily Archives: April 6, 2009
What’s the most recent eruption of Vesuvius and will it erupt again?
Photo by Italian Air Force from Green and Short (1971). Vesuvius has erupted about three dozen times since 79 A.D., most recently from 1913-1944. The 1913-1944 eruption is thought to be the end of an eruptive cycle that began … Continue reading
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Exploring Vesuvius
The University of Rhode Island has developed an educational website designed to help students learn about the processes of explosive volcanic activity through the use of inquiry-based techniques. The exercises use the 79 AD eruption of Vesuvius volcano in Italy … Continue reading
Tungurahua, Ecuador
During 25-27 and 30-31 March, IG reported that steam-and-ash plumes from Tungurahua rose to altitudes of 5.5-7 km (18,000-23,000 ft) a.s.l. and drifted NW, NE, E, and SW. On 25 March, ashfall was reported in areas to the SW and … Continue reading
Suwanose-Jima, Ryukyu Islands, Japan
Based on information from JMA, the Tokyo VAAC reported an explosion from Suwanose-jima on 28 March. JMA reported three explosions on 30 March. Details of possible resultant ash plumes on either day were not reported. Sources: Japan Meteorological Agency (JMA), … Continue reading
Shiveluch, Russia
KVERT reported that seismic activity at Shiveluch was above background levels during 20-27 March. Based on interpretations of seismic data, ash plumes likely rose to an altitude of 6 km (19,700 ft) a.s.l. According to observers, fumaroles were active during … Continue reading
Sakura-Jima, Japan
Based on information from JMA, the Tokyo VAAC reported that an explosion from Sakura-jima on 26 March produced a plume that rose to an altitude of 2.1 km (7,000 ft) a.s.l. and drifted SE. JMA reported occasional weak eruptions during … Continue reading
Rabaul, Papua New Guinea
RVO reported that during 21-26 March white and occasional gray ash plumes from Rabaul caldera’s Tavurvur cone rose 500 m above the crater and drifted in variable directions. Incandescence from the summit crater was seen at night. Light ashfall was … Continue reading
Krakatau, Indonesia
CVGHM reported that seismicity from Krakatau increased during 19-25 March. Fog prevented observations on 24 March. During periods of clear weather on 25 March, white-to-gray plumes rose 400 m above Anak Krakatau. The Alert Level remained at 2 (on a … Continue reading
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
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