Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20210201/1936Z OVER FL070 EXTD SE OBS VA DTG:01/1920Z
Raung (East Java): (1 Feb) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 13000 ft (4000 m) altitude or flight level 130 .
The full report is as follows: VA TO FL130 REPORTED BY GND OBS AT 01/0650Z, MOV E to 13000 ft (4000 m)
Kilauea (Hawai’i): The effusive eruption of the volcano continues and has remained essentially unchanged at moderate levels.
The western fissure continues to supply the lava into the growing Halema‘uma‘u lava lake.
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Popocatépetl (Central Mexico): A significant change in activity has occurred since the last update (21 January 21) as we reported ongoing elevated tremor that started at the end of December 2020.
On 22 January a volcanic tremor started to rapidly decrease and continues with periods of low amplitude values reaching 300-750 min / day around which it has been fluctuating during the past 9 days. Seismic network detected a sharp decrease from 770 minutes on 28 January to 42 minutes of volcanic tremor on 29 January.
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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 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 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: ONGOING VA EMS to 20000 ft (6100 m)
Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: INTERMITTENT EMISSIONS
Volcano Activity Summary for 1 Feb 2021:
