Volcanic activity worldwide 29 Oct 2015: Ibu volcano, Etna, Cotopaxi
Thursday Oct 29, 2015 21:00 PM |
Strombolian activity inside Etna's Voragine crater (photo: Biagio Ragonese / EtnaWeb)
Small strombolian explosion at Ibu yesterday
Etna (Sicily, Italy): (29 Oct) After several weeks of calm, new activity has started during the past days inside the central Voragine crater. Mild strombolian explosions have been observed from a vent at the bottom of the crater.
Steam emissions and glow from Cotopaxi this morning
Photo credit: Etna Web (facebook)
Ibu (Halmahera, Indonesia): (29 Oct) Our recent group who visited the volcano reports small to moderate explosion from the central vent at intervals of 5-20 minutes.
Cotopaxi (Ecuador): No significant changes in the volcano's activity have occurred. According to monitoring scientists from IGEPN, it seems that magma is slowly rising inside an open-conduit system.
During the last week, visual activity mainly consisted in steam and gas emissions reaching 1-2 km height, as well as small explosions in the crater that could only be detected instrumentally. Ash emissions have been minimal. Overall seismic activity has slightly decreased, with averages of 30-50 volcano-tectonic earthquakes (VT) per day. SO2 emissions remained high, fluctuating at values of 2000-5600 tons / day.
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Nishino-shima (Volcano Islands, Japan): (21 Oct) The eruption that had started in Nov 2013 still continues with no significant changes. During the most recent survey on 18 Oct by the Japanese Coast guard, strombolian activity was observed at the central vent, but lava flows no longer reached the coast of the young island, which is being affected and modified by wave erosion. ... [meer...]