Volcanos

Roundup of Global Volcanic Activity:

Nishino-shima (Volcano Islands): The eruption on the now merged Nishino-Shima and Niishima islands continues. A hot spot is visible on current MODIS data.

Hopefully, new imagery will be available from the Japanese Coast guard soon.

Sinabung (Sumatra, Indonesia): The eruption of the volcano continues with little changes. During the past 2 days (see video below), there have been a number of smaller and occasional medium-sized explosions/dome collapse events that produced pyroclastic flows that reach up to 2-3 km length (at 13:50 yesterday and 07:50 this morning (local times).

Tungurahua (Ecuador): (3 Feb) Activity at the volcano continues at similar levels as yesterday with intermittent small to moderately large explosions, producing ash plumes of up to 4 km height.

Activity remains elevated. The volcano emits a constant ash and steam column rising up to 4-5 km, and has strong individual explosions with loud detonations like cannon-shots.

Depending on the wind direction, ash falls, in parts heavy, have been occurring in particular in the sectors north of the volcano and reached as far as the capital Quito.

Barren Island (Indian Ocean): Intermittent eruptive activity continues on the small remote island next to the Andaman island group. A small steam and ash plume and a thermal hot spot can be seen on today's and yesterday's satellite images.

Without (the rare) direct observations (usually by Indian navy), it is impossible to know exactly what type of activity is going on at the moment. It could be intermittent strombolian-type explosions, and/or lava flows or even the formation of a small temporary lava lake.