Soufriere Hills Information Abounds!

The section on Soufriere Hills volcano on photovolcanica.com has now been upgraded to provide what is one of the most comprehensive scientifically referenced analyses of the whole eruption freely available online.  A brief introduction and chronology are followed by very detailed sections covering all of the main eruptive events.  Numerous photos and 6 detailed maps [...]

Ubinas, Peru

Based on SIGMET notices, the Buenos Aires VAAC reported that during 11-13 October ash plumes were continuously emitted from Ubinas and rose to altitudes of 5.5-7 km (18,000-23,000 ft) a.s.l. The plumes drifted SE and W.
Sources: Buenos Aires Volcanic Ash Advisory Center (VAAC) – “Reports provided courtesy of the Smithsonian’s Global Volcanism Program and the [...]

Suwanose-Jima, Ryukyu Islands, Japan

Based on reports from JMA, the Tokyo VAAC reported explosions from Suwanose-jima on 9 and 11 October. The altitude and direction of a possible resultant plume were not reported.
Source: 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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Soufriére Hills, Montserrat, West Indies

MVO reported that during 3-10 October, the activity level at the Soufrière Hills lava dome was slightly higher than the previous week and consisted mainly of rockfalls and mudflows. As a result of slow and continuous erosion of the lower part of the dome, rockfalls occurred on both the W side in the gully over [...]

Shiveluch, Russia

KVERT reported that seismic activity at Shiveluch was above background levels during 3-10 October. Based on interpretations of seismic data, a large number of hot avalanches descended the lava dome and produced ash plumes that rose to an altitude of 4 km (13,100 ft) a.s.l. Fumarolic activity and gas-and-steam plumes that rose to an approximate [...]

Rabaul, Papua New Guinea

RVO reported that during 7-12 October steam and ash plumes from Rabaul caldera’s Tavurvur cone rose to an altitude of 2.7 km (8,900 ft) a.s.l. and drifted N, NW, and W. During 11-12 October, ash emissions increased in frequency; ashfall was reported in areas downwind, including Namanula Hill (3 km W). Continuous incandescence from the [...]

Pacaya, Guatemala

INSIVUMEH reported that, during 8-14 October, multiple lava flows on the W and SW flanks of Pacaya’s MacKenney cone traveled a maximum distance of 250 m and continued to fill in the area between the cone and Cerro Chino crater to the N. Avalanches occurred from the lava-flow fronts on 8 October. Fumarolic plumes drifted [...]

Masaya, Nicaragua

Based on pilot observations, the Washington VAAC reported that on 9 October an ash plume from Masaya rose to an altitude of 4.6 km (15,000 ft) and drifted NNE.
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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Kilauea, Hawaii, USA

HVO reported that during 8-14 October lava flowed SE through a tube system from underneath Kilauea’s Thanksgiving Eve Breakout (TEB) and rootless shield complex, reaching the Waikupanaha ocean entry. Multiple lava breakouts, including a small ‘a’a flow E of the Royal Gardens subdivision, and points of incandescence on the pali were noted. The sulfur dioxide [...]

Karymsky, Russia

KVERT reported that seismic activity at Karymsky was above background levels during 3-10 October. Possible explosions during 4-9 October may have generated ash plumes to an altitude of 4 km (13,100 ft) a.s.l. Analysis of satellite imagery revealed a thermal anomaly in the crater during 3-4 and 8-9 October and cloudy conditions on the other [...]