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Volcanic activity worldwide 11 Jan 2021: Fuego volcano, Popocatépetl, Shiveluch, Reventador, Kilaue...

Shiveluch (Kamchatka): (11 Jan) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA AT 20210110/2327Z FL190 EXTD NW MOV 30KT REPORTED

Sarychev Peak (Central Kuriles): Activity of the volcano continues at elevated levels.
KVERT reported that on 10 January at 15:17 UTC KVERT a difference between thermal anomaly and background temperature was 79,8 °C identified in VolSatView satellite data likely caused by a new batch of magma that could be rising inside the volcano's conduits towards the crater.
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Formation of lava flows in the summit crater in the near future is a possibility if activity at the volcano increases further.
The last explosive eruptions at the volcano occurred on 12, 14 and 18 September 2018.


Sakurajima (Kyushu, Japan): (11 Jan) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20210111/0233Z OVER FL070 EXTD E OBS VA DTG:11/0220Z

Suwanose-jima (Ryukyu Islands): (11 Jan) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20210111/0816Z FL060 EXTD NE OBS VA DTG:11/0810Z

Ruapehu (North Island): The activity of the volcano continues at fluctuating levels during the past few months and currently continues at low levels.
GeoNet reported that gas emissions have declined to normal levels on 30 Dec last year.
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On 29 Dec a volcanic tremor has decreased and remains at low levels.
Chemical analysis of water collected from Crater Lake (Te Wai ā-moe) on 31 Dec showed small changes in key parameters since previous observations a few weeks earlier on 2 Dec.


Kilauea (Hawai'i): (11 Jan) The effusive eruption of the volcano continues. The west vent continues to feed the growing lava lake that remains active and hasn't shown big variations over the past days.
According to the Hawaiian Volcano Observatory (HVO), a few floating islands formed in the lava lake. The largest island is about 250 m (820 ft) long, 135 m (440 ft) wide and 20 m (65 ft) tall. On 1 January the islands’ edges were about 6 m (20 ft) above the lava lake surface. On 4 Janury the whole island had risen by about 2 m (6-7 ft). The island has rotated and moved both eastward and westward since its formation on the first day of the eruption. On 6 January at about 22:30 local time the island stalled in rotation and movement.
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Webcam imagery and eyewitness observations indicate that it formed through a combination of lava interacting with the lake water, early lava flows, and tephra erupted from the early highest fountains. Islands have been observed in Kīlauea lava lakes for more than 100 years. The apparent buoyancy changes of the island may be due to a density increase in the lava lake as gases escape or sloughing off of island material from the subsurface.


Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAVE DISP IN STLT IMAGERY

Fuego (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: LGT VA EMS OBS IN STLT IMAGERY to 14000 ft (4300 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: VA CLDS OBS IN STLT IMAGERY to 20000 ft (6100 m)

Reventador (Ecuador): (10 Jan) 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 .
The full report is as follows: VA EM AT 10/2307Z to 15000 ft (4600 m)

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: SPORADIC PUFF EMISSION

Volcano Activity Summary for 11 Jan 2021:

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