Volcanos

Roundup of Global Volcanic Activity

Bardarbunga (Iceland): Eruptive activity at the Holuhraun fissure is decreasing and many believe that it might end within some days. This does not necessarily mean that the eruption & crisis is over, however, but could be just a pause.

Mayon volcano (Philippines): The volcano could to be heading towards a new eruption. PHILVOLCS raised the alert level of the volcano was raised from 2 to 3 (on a scale of 1-5) on 15 Sep, following increased seismic activity and observation of small incandescent rockfalls on the southeastern upper flank. The presence of low-frequency earthquakes suggests that magma has started to rise within the volcano, which would explain the recently observed lava dome and the glowing rockfalls during recent days, which in turn likely originated from it. The exclusion zone around Mayon has been extended to 6 km around the whole volcano and 7 km on the most exposed southeastern sector. This area is most at risk, if dangerous pyroclastic flows (hot avalanches of fragmented lava from the dome, mixed with hot air and gasses) develop.

Stromboli volcano (Eolian Islands, Italy): Lava effusion continues with little changes overall. During the past weeks, the main lava flow has been traveling in the central part of the Sciara where it is mostly hidden from the webcam. The main flow front almost reached the sea again last night and this morning, but stopped shortly before the shoreline. Beneath the vent at 650 m elevation, occasional overflows occur to feed small secondary flows on the northern upper part. This was visible on the publicly available INGV webcam located at 400 m elevation.