Volcanic activity worldwide 27 Nov 2021: Stromboli volcano, Fuego, Semeru, Reventador, Soufriere Hil...

Stromboli (Eolian Islands, Italy): The lava flow on the upper Sciara del Fuoco seems to have more or less ceased in the course of today.
Activity remains at medium level, with frequent small and sometimes larger strombolian explosions from several vents. Gas emissions, volcanic tremor and other monitoring parameters show no significant variations.

La Palma (Canary Islands (Spain)): The eruption has been a little bit today, at least at the surface, while internal activity remains similar. Lava fountaining activity at the vents continues, but less intense compared to the past days. The ash and steam plume reached only little more than 1,000 m altitude today, although this is partly due to stronger eastern winds that push the plume down and over the ocean.
Lava effusion continues, but it is difficult to estimate the amount erupted as most of it is going into the tube system.
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As inflation is picking up again, there is a possibility that more lava is being stored at depth than currently erupted, and a new surge of lava output is likely to occur in the near future to make up for the current drop.

The lava flows that erupted from the new fissure, which had opened Thursday evening less than 1000 m south of the main cone, with one of the effusive vents appearing right next to an abandoned house, seemed no longer or very little active in the latest assessment of the scientific monitoring team.


Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20211127/1825Z FL040 EXTD SW OBS VA DTG:27/1820Z

Bagana (Bougainville Island, Papua New Guinea): (26 Nov) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 .
The full report is as follows: CONTINOUS VA ERUPTION TO FL070 MOV NW OBS VA DTG:26/2140Z to 7000 ft (2100 m)

Semeru (East Java, Indonesia): (27 Nov) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 and is moving at 10 kts in NW direction.
The full report is as follows: MINOR VA EMISSION TO FL140 OBS VA DTG:27/0030Z to 14000 ft (4300 m)

Yasur (Tanna Island, Vanuatu): The volcano has been very active recently. Strombolian-type explosions are rather strong and sometimes produce dense ash plumes rising several hundred meters.
Visitors are warned from approaching the crater rims where the risk of being hit by lava bombs is elevated. Some of the recent ash emissions have been strong enough to trigger notices by Darwin's Volcanic Ash Advisory center to warn aircraft in the area.
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Time-lapse of the activity at the volcano over the past 48 hours:


Fuego (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 .
The full report is as follows: VA EMS OBSD to 15000 ft (4600 m)

Nevado del Ruiz (Colombia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 .
The full report is as follows: LGT VA CLDS OBSD to 21000 ft (6400 m)

Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 .
The full report is as follows: CONS VA EMS OBSD IN SAT to 23000 ft (7000 m)

Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows: LKLY VA EMS to 16000 ft (4900 m)

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: UNABLE TO DETECT

Nevados de Chillán (Central Chile): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 and is moving at 10 kts in SE direction.
The full report is as follows: CONTINUOUS EMISSION to 14000 ft (4300 m)

Soufriere Hills (Montserrat, West Indies (UK)): (26 Nov) The activity of the volcano continues at low values.
The large size of the lava dome and unstable hot lava material is prone to collapse into hot rock falls, which in turn develop into very dangerous pyroclastic flows and may travel in Plymouth town direction. Pyroclastic flows are deadly, turbulent hot avalanche of lava rock fragments of all sizes embedded in a mixture of turbulent gas and ash racing down slopes.
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The seismic instruments detected 13 volcano-tectonic quakes this week.
Flux of sulfur dioxide (SO2) emissions reached to a 369 and 736 tonnes/day detected on 20 and 24 November.