The Colima presented yesterday a sustained explosive activity: I counted eight on the webcam (at 5:21, 9:06, 11:07, 15:38, 17:45, 19:31, 22:16, 23:21), but this number is not exhaustive. They were accompanied by plumes of ashes rising between 2,000 and 3,000 meters above the crater, and for the episode of 11:07, by a small pyroclastic flow in the direction of Jalisco.
Sources: WebcamsdeMexico & Proteccion Civil Jalisco
Colima - the explosion of 11:07 was accompanied by a small pyroclastic flow - webcamsdeMexico 13.12.2016 / at 11:11.
In Guatemala, the Conred indicates an internal tremor produced by the ascent of magma and gas to the surface at the Pacaya. No explosion or sound was perceived.
On Sumatra, activity continues at Sinabung, with falling blocks, explosions accompanied by plumes of ash. Clearly visible on 12 December, this activity was masked by the clouds on the 13th in the afternoon.
Sources: Endro Lewa and Beidar Sinabung
On Etna, the crack between the old and the new south-east crater, appeared in August, still presents an incandescence, due to a rise of gas at high temperature. This crack is lined with colored sublimates.
Source: Video EtnaWalk