Volcanic activity worldwide 15 Jul 2021: Etna volcano, Stromboli, Fuego, Karymsky, Reventador, Sanga...

Stromboli (Eolian Islands, Italy): (15 Jul) A stronger-then-usual explosion occurred yesterday afternoon at the volcano.
The National Institute of Geophysics and Volcanology (INGV) in Catania reported that at 15:19 local time, an intense explosion took place from the vent in the Central-South crater area, sending lapilli and lava bombs to the upper Sciara del Fuoco and the Pizzo area (which used to be a popular viewing area, now closed).
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Volcanic tremor increased temporarily to medium-high values starting from 14:30 and later decreased again to medium-low values. The explosion illustrates one of the main hazards when visiting the volcano from close: it came during a phase of generally low activity and had no detected precursor.
Overall, activity at the volcano had decreased from high in early June to comparably low levels over the past weeks, according to the latest daily summary published by the Experimental Geophysical Laboratory (LGS) of the University of Florence, which taks into account various observed and measured monitoring data.

Etna (Sicily, Italy): (15 Jul) Following 5 and a half day of quiet, the New SE crater produced yet another paroxysm, and one of the most powerful ones in the current series, perhaps as a result of the longer-then-usual interval that had passed since the previous episode Thursday evening last week.
Events building up to the eruption followed the usual pattern:
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Volcanic tremor increased in the morning after 09:50 local time, and strombolian activity restarted at the New SE crater from around 11:05. A lava flow started from the southern crater rim to travel to the SW from around 12:40.
At the summit vent, explosive activity increased gradually and merged into lava fountaining by around 1 pm, lasted for approx. one hour and half. During the peak phase from 1.40-2.20 pm, the lava fountains reached 600-1000 m in height and produced a thick eruption column that rose to more than 9000 m above sea level, which drifted NE, causing lapilli and ash fall as far as Taormina and Reggio Calabria.


Karymsky (Kamchatka): (15 Jul) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 .
The full report is as follows: VA AT 20210715/0120Z FL090 EXTD E OBS VA DTG:15/0120Z to 9000 ft (2700 m)

Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20210715/1234Z FL100 EXTD W OBS VA DTG:15/1230Z
...15 Jul:
Series of strong explosive eruptions are now in progress at the volcano's Ontake summit crater over the past few days.
Increasingly tall and dense ash plumes rose to estimated 10,000 ft (3,000 m) and extended west of the volcano.
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Explosions continue to generate pyroclastic bombs and blocks that are ejected up to 400 meters away from the crater towards NW.
Near-constant glow in the Ontake crater suggests that the flux of magma is rising within the edifice.


Lewotolo (Lesser Sunda Islands): (14 Jul) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7500 ft (2300 m) altitude or flight level 075 .
The full report is as follows: VA TO FL075 MOV NW OBS FM GND AT 14/2218Z OBS VA DTG:14/2300Z to 7500 ft (2300 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 and is moving at 20 kts in W direction.
The full report is as follows: NEW VA EMS OBS 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 NW direction.
The full report is as follows: CONT VA EMS OBS to 21000 ft (6400 m)

Reventador (Ecuador): 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 and is moving at 15 kts in W direction.
The full report is as follows: CONT LGT VA EMS to 14000 ft (4300 m)

Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 25000 ft (7600 m) altitude or flight level 250 and is moving at 30 kts in E direction.
The full report is as follows: SPORADIC PUFFS OF VA to 25000 ft (7600 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 14000 ft (4300 m) altitude or flight level 140 and is moving at 20 kts in NE direction.
The full report is as follows: INTERMITTENT PUFFS OF VA to 14000 ft (4300 m)