Volcanic activity worldwide 20 Jan 2023: Stromboli volcano, Santiaguito, Fuego, Popocatépetl, Semer...

Stromboli (Eolian Islands, Italy): Volcanic Ash Advisory Center Toulouse (VAAC) issued the following report: ERUPTION AT 20230120/0821Z NO ASH CLOUD IS PRODUCED OBS VA DTG:20/0827Z

Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20230120/1807Z OVER FL090 STNR OBS VA DTG:20/1800Z

Semeru (East Java, Indonesia): (20 Jan) Vulcanian-type eruptions continue to take place from Jonggring Saloko crater at roughly regular intervals every 15-30 minutes. Grey ash plumes rose about 500 meters above the crater over the past days, throwing lava bombs in various directions.

The volcano observatory reported a seismic signal with a maximum amplitude of 20 mm and a duration of 100 seconds.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 20 January 2023

Popocatépetl (Central Mexico): 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: NEW VA EMS to 20000 ft (6100 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: NEW VA EMS to 14000 ft (4300 m)

Fuego (Guatemala): (20 Jan) Vulcanian and strombolian activity continues from the summit crater.
The volcano continues to erupt near-continuous weak-to-moderate, sometimes ash-rich explosions at regular intervals of 6 to 8 per hour.
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Ash plume heights varied between 14,100 ft-15,400 ft (4,300 m-4,700 m) altitude and extended in range between 15 to 40 kilometers to the west and southwest of the volcano.
Much of the ejected incandescent material is being ejected to a few hundreds meters above the crater, causing weak to moderate glowing avalanches towards Ceniza and Santa Teresa and Honda chutes.


Nevado del Ruiz (Colombia): 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: VA EM AT 20/1023Z to 22000 ft (6700 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: NEW VA EMS to 20000 ft (6100 m)

Reventador (Ecuador): (20 Jan) 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: OCNL EM to 14000 ft (4300 m)

Cotopaxi (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 .
The full report is as follows: NEW VA EMS to 21000 ft (6400 m)

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

Villarrica (Central Chile): (20 Jan) Strombolian activity at the volcano continues to be elevated.
Another lava-fountaining episode (paroxysm) appeared from the summit vent, vigorous lava jets reached perhaps 100 m in height, throwing hot, fresh and incandescent ejecta on the upper western-southwestern slopes of the edifice.
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Given the past paroxysms that happened so far, Villarrica's tendency seems to produce such events in series at roughly regular intervals of approx. 17 hours or so.
The Volcanic Alert Level remains at Yellow with 500 meters exclusion zone around the main crater in place.

Volcano Activity Summary for 20 Jan 2023: