The lava lake in Masaya crater on 30 Dec 2015 (image: Maria Timmer / @ScienceByMaria / twitter)

Masaya (Nicaragua): (3 Jan) A small lava lake, approx. 10×20 meters in diameter, is active inside the main crater of the volcano. This activity seems to have started in mid December and has been continuing since.

Momotombo (Nicaragua): A strong explosion occurred this morning at 04:22 local time at the volcano, covering much of the summit cone with incandescent ejecta.
The lava flow effusion and continuous strombolian activity had stopped in early December, followed by only high-temperature degassing, sporadic minor explosions and the growth of what might have been a small lava dome. A more intense phase of activity seems to have started yesterday. Early on 2 January, small ash emissions occurred, followed by more, still weak explosions in the early afternoon of yesterday.

Continue reading at Volcano Discovery: Volcanoes Today, 4 Jan 2016: Masaya Volcano, Momotombo