Etna (Sicily, Italy): (6 May) A new effusive episode occurred at the Southeast Crater last night.
A new lava flow emerged on the eastern flank.
This marks 12th eruptive phase over the past two months.
Ibu (Halmahera, Indonesia): 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 S direction.
The full report is as follows: VA TO FL070 LAST REPORTED AT 06/0440Z EST VA DTG:06/1120Z to 7000 ft (2100 m)
Semeru (East Java, Indonesia): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 10 kts in NW direction.
The full report is as follows: VA TO FL150 REPORTED AT 06/0610Z EST VA DTG:06/1020Z to 15000 ft (4600 m)
Marapi (Western Sumatra, Indonesia): (6 May) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 11000 ft (3400 m) altitude or flight level 110 and is moving at 10 kts in E direction.
The full report is as follows: VA OBS TO FL110 AT 06/0210Z OBS VA DTG:06/0210Z to 11000 ft (3400 m)
Dukono (Halmahera): (5 May) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 .
The full report is as follows: VA OBS TO FL090 AT 05/2250 MOV SE OBS VA DTG:05/2250Z to 9000 ft (2700 m)
White Island (New Zealand): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Wellington warned about a volcanic ash plume that rose up to estimated 3000 ft (900 m) altitude or flight level 030 and is moving at 05 kts in E direction.
The full report is as follows: ERUPTION AT 20250503/0040Z CONTINUOUS LOW LEVEL ERUPTION to 3000 ft (900 m)
Atka (United States, Aleutian Islands): (6 May) Since the minor explosive event at 10:34 local time on April 25, no activity has been observed at the Atka volcanic complex.
As a result, the Aviation Color Code and Alert Level are being downgraded to GREEN/NORMAL.
Source: Alaska Volcano Observatory volcano activity update 6 May 2025
Popocatépetl (Central Mexico): (6 May) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 .
The full report is as follows: DISCRETE VA EM. to 21000 ft (6400 m)
Santiaguito (Guatemala): 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
Poas (Costa Rica): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 .
The full report is as follows: POSSIBLE VA EMS. to 10000 ft (3000 m)
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 .
The full report is as follows: POSSIBLE ONGOING VA EMS. to 21000 ft (6400 m)
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: ONGOING VA EMS. to 14000 ft (4300 m)
