Volcanic activity worldwide 4 Feb 2021: Fuego volcano, Popocatépetl, Dukono, Reventador, Raung, San...

Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20210204/1924Z OVER FL080 EXTD E OBS VA DTG:04/1910Z

Suwanose-jima (Ryukyu Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 and is moving at 10 kts in E direction.
The full report is as follows: VA AT 20210204/1610Z FL050 EXTD SE OBS VA DTG:04/1610Z to 5000 ft (1500 m)

Raung (East Java): (4 Feb) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: GROUND REPORT OF CONTINUOUS ERUPTION TO FL120 MOV E

Sinabung (Sumatra, Indonesia): The effusive-explosive eruption of the volcano continues.
The extrusive actively lava dome continues to grow at moderate to high levels. This relatively intense effusive phase causes near-constant gravitational collapse of the lava dome triggering the block-and-ash flows (pyroclastic flows) that lifted ash plumes (so-called phoenix clouds) as it descended the slope.
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A current volume of the growing lava dome has reached 4 million m³.


Dukono (Halmahera): (4 Feb) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 .
The full report is as follows: CONTINUOUS VA EMISSION TO FL060 MOV SW OBS VA DTG:04/0104Z to 6000 ft (1800 m)

Popocatépetl (Central Mexico): (3 Feb) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA DSIPTD AND STEAM AND GASES ONLY

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 and is moving at 5 kts in SW direction.
The full report is as follows: CONT VA EMS to 15000 ft (4600 m)

Sangay (Ecuador): 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 and is moving at 15 kts in W direction.
The full report is as follows: CONT VA EMS to 21000 ft (6400 m)
...4 Feb:
The effusive-explosive eruption of the volcano continues and has remained essentially unchanged at moderate levels.
The eruptive activity produces frequent small to moderate ash emissions that reach up to approx. 19,000 ft (5,800 m) altitude and drifted S-SW.
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The lava continues to keep the flow active onto the southeastern slope at moderate rate. Collapsing parts of the flow generated a glowing rockfalls and caused avalanches of material.
According to FIRMS, 17 thermal anomalies was detected in the last 24 hours.


Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAS DISP

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

Soufrière St. Vincent (West Indies, St. Vincent): (4 Feb) The effusive eruption of the volcano continues characterized by the actively growing lava dome.
The extruded lava dome is about 93 m tall, 231 m wide and 511 long and had a volume of 5.93 million cubic meters by 1 February reported by the University of the West Indies Seismic Research Centre (UWI-SRC).
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On 1 February a gas measurements revealed the presence of sulfur dioxide (SO2) emissions, first since the eruption started. The absence of sulfur dioxide (SO2) emissions in the early stages of the eruption was due to the interaction of SO2 with the groundwater as SO2 dissolves in groundwater. The gas escaping suggests that the groundwater is drying up.
Remaining gas measurements detected the presence of hydrogen chloride (HCl), hydrogen fluoride (HF) and hydrogen sulfide (H2S).

...4 Feb:
The effusive eruption of the volcano continues characterized by the actively growing lava dome.
The extruded lava dome is about 93 m tall, 231 m wide and 511 long and had a volume of 5.93 million cubic meters by 1 February reported by the University of the West Indies Seismic Research Centre (UWI-SRC).
... [read more]... [show less]
On 1 February a gas measurements revealed the presence of sulfur dioxide (SO2) emissions, first since the eruption started. The absence of sulfur dioxide (SO2) emissions in the early stages of the eruption was due to the interaction of SO2 with the groundwater as SO2 dissolves in groundwater. The gas escaping suggests that the groundwater is drying up.
Remaining gas measurements detected the presence of hydrogen chloride (HCl), hydrogen fluoride (HF) and hydrogen sulfide (H2S).

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