Sakurajima (Kyushu, Japan): (23 Nov) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA AT 20201123/0550Z 15NM SW OF RJFK FL080 EXTD SE
Suwanose-jima (Ryukyu Islands): (23 Nov) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20201123/0139Z OVER FL040 EXTD SE OBS VA DTG:23/0140Z
Dukono (Halmahera): 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 05 kts in S direction.
The full report is as follows: CONTINUOUS VA EMISSION TO FL070 OBS VA DTG:23/1045Z to 7000 ft (2100 m)
White Island (New Zealand): Volcanic Ash Advisory Center Wellington (VAAC) issued the following report: ONGOING LOW LEVEL ASH EMISSION IN STEAM PLUME
Semisopochnoi (United States, Aleutian Islands): (23 Nov) The Alaska Volcano Observatory (AVO) lowered the alert level of the volcano because no eruptive activity has been detected at since mid-June.
Seismicity has remained above background levels since that time but had decreased to very low levels before a satellite link for transmitting seismic data failed on 11 November. Low-level seismic unrest may be continuing undetected.
Source: Alaska Volcano Observatory volcano activity update 23 November 2020
Nevado del Ruiz (Colombia): (22 Nov) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 19000 ft (5800 m) altitude or flight level 190 .
The full report is as follows: VA CLD ARND 22/2200Z RPRTD IN VONA to 19000 ft (5800 m)
Reventador (Ecuador): (23 Nov) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA NOT DETECTED
Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 26000 ft (7900 m) altitude or flight level 260 .
The full report is as follows: INTERMITTENT EMISSIONS to 26000 ft (7900 m)
Volcano Activity Summary for 23 Nov 2020:
