December 11, 2012 – WORLDWIDE VOLCANOES – The following constitutes the new activity, unrest and ongoing report from the Volcano Discovery Group.
Another strong explosion occurred this morning at Lokon volcano in North Sulawesi (Indonesia). The eruption produced an ash plume about 3 km high and has been followed by several smaller explosions. This markes one of the most intense phases of activity during the year.
Popocatépetl volcano in Mexico continues to produce frequent (about 3 per hour) but small emissions, only some of which contain some ash.
In Guatemala, Fuego volcano continues to erupt a lava flow towards the Ceniza canyon. On 10 Dec morning, the flow had increased to 700 m length and produced glowing avalanches that reached the vegetation line. Few weak strombolian explosions, sometimes accompanied by rumbling sounds, were occurring as well.
Activity of Santiaguito remains being dominantly effusive. The new block lava flow that had recently formed on the southern flank of the Caliente dome produces glowing avalanches. The other flows on the SE side remain active as well.
A constant steam plume rises from the dome to an altitude of approx. 3000 m a.s.l. and incandescence is seen at the dome at night.
GLOBAL VOLCANISM: The Volcano Discovery Report For December 10-11 – Lokon, Popocatépetl, Fuego, Santiaguito, Reventador, Nevado del Ruiz, Machin, Tjörnes Fracture Zone, and Coso! ~ The CELESTIAL Convergence.