Volcanic activity worldwide 8 Jun 2021: Fuego volcano, Dukono, Reventador, Sangay, Ruapehu, Mount Ho…

Map of today’s active volcanoes

Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTED AT 20210608/1515Z FL100 EXTD NW OBS VA DTG:08/1510Z

Dukono (Halmahera): (7 Jun) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 7000 ft (2100 m) altitude or flight level 070 and is moving at 10 kts in E direction.
The full report is as follows: CONTINUOUS VA EMISSION OBS TO FL070 EXT E AT 07/2210Z to 7000 ft (2100 m)

Ruapehu (North Island): The activity of the volcano continued at fluctuacting levels as in December last year the elevated volcanic activity was recorded, but this unrest decreased on 11 January 2021.
During this period, volcanologists conducted to monitor gas flights, Crater Lake water samplings and temperature, a seismic activity and indicate that key parameters remain at normal ranges.
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The largest observed variation in activity over the past several months has been the crater lake temperature. It was over 43 °C in early January 2021 then cooled to around 30 °C in February-March, before reheating again to just over 40 °C in early April. Since then, it has cooled again to 26 °C in recent weeks.
To maintain the lake water temperature at around 40 °C our modelling indicates that ~400 MW (megawatt) of heat was entering the lake. The heat input is currently about 100 MW.

Gareloi (United States, Aleutian Islands): The Alaska Volcano Observatory (AVO) noted that an elevated seismic activity was recorded at the volcano on 18 May including a sustained increase of small volcano-tectonic earthquakes on 27 May.
Sulfur dioxide (SO2) emissions were detected in satellite images over the past week and is consistent with measurements from the last several years.
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Therefore, the Aviation Color Code raised to „yellow“, as the increase of seismic activity has been recorded.

Mount Hood (Oregon): On 5 June at 20:51 local time, the Cascade Volcano Observatory’s (CVO) seismic network detected a volcano-tectonic earthquake with magnitude M 3.9 that occurred about 4 km south of the summit at 4.3 km depth.
It was preceded by several earthquakes in the hour prior to the M 3.9, and tens of aftershocks have occurred so far with event rates declining in a manner typical of mainshock-aftershock sequences. The earthquake was felt in the vicinity around the volcano.
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The mainshock characteristics and location are consistent with past swarms in the Mount Hood area, including a M 4.5 on June 29, 2002, that was located ~1 mile east of the M 3.9. Aftershocks will likely continue for hours or days, some of which may be felt.
Seismologists from the CVO and Pacific Northwest Seismic Network don’t indicate that the seicmic event could be related to volcanic hazard at the volcano.

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

Sangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS NOT OBS

Reventador (Ecuador): 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: PSBL VA EMS to 14000 ft (4300 m)

Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 and is moving at 25 kts in SE direction.
The full report is as follows: INTERMITTENT EMISSION OF VA to 24000 ft (7300 m)

Nevados de Chillán (Central Chile): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: SPORADIC EMISSION OF VA

Satellite image of Dukono volcano on 7 Jun 2021