Reykjanes (Reykjanes peninsula (SW Iceland)): (7 Dec) The latest geodetic modelling results indicate that magma influx to the dike likely ceased. Therefore, the likelihood of a potential eruption in the area has significantly decreased. However, the accumulation of magma beneath Svartsengi region continues.
About 200-300 earthquakes have been detected around the dike over the past two days, of which the strongest quake M 2.0 was registered in the region. Most of the seismic activity has been located at depths between 3 and 4 km.
Source: Icelandic Met Office volcano activity update 7 December 2023
Ibu (Halmahera, Indonesia): (7 Dec) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 .
The full report is as follows: VA TO FL080 MOV SE REPORTED AT 07/0217Z OBS VA DTG:07/0250Z to 8000 ft (2400 m)
Lewotolo (Lesser Sunda Islands): (7 Dec) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: DISCRETE VA TO FL060 MOV NW REPORTED AT 07/0701Z
Krakatau (Sunda Strait, Indonesia): (7 Dec) The eruptive period at the volcano persists.
Vulcanian eruptions continue to produce ash abundant emissions that rose to an altitude between 5,000 ft-7,000 ft (1500 m-2100 m) and drifted north throughout past two days.
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Semeru (East Java, Indonesia): 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 05 kts in SW direction.
The full report is as follows: VA TO FL140 REPORTED AT 07/1710Z EST VA DTG:07/1820Z to 14000 ft (4300 m)
Marapi (Western Sumatra, Indonesia): (7 Dec) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin 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 TO FL150 OBS MOV N AT 07/0230Z OBS VA DTG:07/0230Z to 15000 ft (4600 m)
Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .
The full report is as follows: NEW VA EMS OBS to 22000 ft (6700 m)
Santiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 .
The full report is as follows: DISCRETE VA EMS to 14000 ft (4300 m)
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 OBS MOVG W/WSW 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: VONA RPRT RCVD 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 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: VA EMS MOVG W to 20000 ft (6100 m)
Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: UNABLE TO DETECT
