La Palma (Canary Islands (Spain)): No significant changes have occurred since the last updates. The eruption continues, but more and more it looks as if it might finally be getting close to an end within a foreseeable future, but it can only be guessed what how long exactly it still might last, maybe few weeks.
At the vents, steaming is prevalent, with occasional small explosions of strombolian type and ash emissions that occasionally produce plumes that rise a few hundred meters. Effusive activity remains more or less stable, however. Lava continues to erupt, mainly directly into lava tubes, and breaks out to form surface flows downslope in the central part of the lava flow field.
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Imágenes de hoy a las 8.00 hora canaria desde el Mirador de Las Hoyas que muestran la colada de lava cayendo por el cantil / Today’s images at 8.00 am Canarian time from the Mirador de Las Hoyas that show the lava flow falling down the cliff pic.twitter.com/0klNIWoRqc
— INVOLCAN (@involcan) December 11, 2021
Davidof (United States, Aleutian Islands): (11 Dec) A swarm of earthquakes occurred at the volcano over the past week and is still ongoing.
The largest quake with a magnitude 4.2 was recorded at 19:45 local time today. The swarm might be related as a response to a volcanic unrest or regional tectonic activity.
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Semisopochnoi (United States, Aleutian Islands): (11 Dec) The USGS’s surveillance cameras observed a strong short-lived explosion at about 15:15 local time today generating dense ash plume.
The height of the ash plume is unknown and was not reported yet nor by the Volcanic Ash Advisory Center Anchorage (VAAC) and the Alaska Volcano Observatory. If the eruption came without warning or it was accompanied by a detected precursor, these details need to be confirmed by the volcano observatory or VAAC.
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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: ONGOING VA EMS to 15000 ft (4600 m)
Nevado del Ruiz (Colombia): (11 Dec) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: FAINT VA CLDS OBSD to 20000 ft (6100 m)
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: ONGOING VA EMS to 20000 ft (6100 m)
Reventador (Ecuador): 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: CONTG OCNL VA EMS. to 15000 ft (4600 m)
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 18000 ft (5500 m) altitude or flight level 180 and is moving at 10 kts in NE direction.
The full report is as follows: INTERMITENT EMISSIONS to 18000 ft (5500 m)
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 13000 ft (4000 m) altitude or flight level 130 and is moving at 45 kts in SE direction.
The full report is as follows: continuous ash emissions to 13000 ft (4000 m)
