Volcanic activity worldwide 30 Jan 2024: Santiaguito volcano, Fuego, Popocatépetl, Merapi, Semeru, …

Map of today’s active volcanoes

Merapi (Central Java, Indonesia): (30 Jan) A strong eruption occurred at the volcano yesterday afternoon.
At around 12:54 local time, a large hot avalanche, known as pyroclastic flow, descended from the active lava dome at the summit crater.
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The extremely dangerous, fast-moving turbulent flow consists of a mixture of hot rock fragments of the lava dome, volcanic gasses and ambient air. It traveled through the Kali Boyong ravine on the southern flank and reached the usual distance of about several hundred meters from the summit. It also produced massive grey ash-abundant plumes, so-called phoenix clouds, separating from the block-and-ash flow.
Pyroclastic flows are typically formed when the accumulated lava masses at the summit crater, known as the lava dome, become too large and suffer smaller or larger gravitational collapse, which then turn into fast and deadly avalanches as they destroy and burn everything in their path.

Semeru (East Java, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: DISCRETE VA LAST REPORTED AT 30/0353Z EST VA DTG:30/1120Z

Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: CONS VA EMS

Santiaguito (Guatemala): (30 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: DISCRETE VA EM OBSD. to 14000 ft (4300 m)

Fuego (Guatemala): (30 Jan) Mild explosive activity continues from the volcano. The Volcanic Ash Advisory Center (VAAC) Washington reported intermittent emissions of volcanic ash plumes.
The full report is as follows: sporadic emissions of volcanic ash

Nevado del Ruiz (Colombia): (30 Jan) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT DETECTED.

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 OBS to 20000 ft (6100 m)

Reventador (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 and is moving at 10 kts in SW direction.
The full report is as follows: VA CLD OBSD. to 16000 ft (4900 m)

Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 .
The full report is as follows: PUFF EMISSIONS to 23000 ft (7000 m)

Phoenix clouds resulted from the pyroclastic flow at Merapi yesterday (image: PVMBG)