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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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.
… [read more]
Volcano Activity Summary for 20 Jan 2023:
