Etna (Sicily, Italy): (4 Apr) Volcanic Ash Advisory Center Toulouse (VAAC) issued the following report: ERUPTION AT 20250404/0638Z SPORADIC EXPLOSIVE ACTIVITY
Shiveluch (Kamchatka): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA AT 20250404/1954Z FL070 EXTD E MOV 15KT REPORTED
Sakurajima (Kyushu, Japan): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: EXPLODED AT 20250404/1527Z FL050 STNR OBS VA DTG:04/1520Z
Canlaon (Central Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20250404/1605Z FL100 EXTD SW REPORTED OBS VA DTG:04/1610Z
Ibu (Halmahera, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA LAST REPORTED TO FL070 AT 04/1153Z EST VA DTG:04/1140Z
Lewotobi (Flores): 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 and is moving at 10 kts in E direction.
The full report is as follows: VA TO FL090 REPORTED AT 04/1527Z EST VA DTG:04/1630Z to 9000 ft (2700 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 05 kts in E direction.
The full report is as follows: VA TO FL150 LAST REPORTED 04/1753Z EST VA DTG:04/1800Z to 15000 ft (4600 m)
Marapi (Western Sumatra, Indonesia): (3 Apr) 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 LAST REPORTED AT 03/1104Z OBS VA DTG:03/2250Z to 13000 ft (4000 m)
Dukono (Halmahera): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 .
The full report is as follows: VA TO FL060 REPORTED MOV SE AT 04/0301Z EST VA DTG:04/1540Z to 6000 ft (1800 m)
Kilauea (Hawai’i): (3 Apr) A timelapse from 26 March captures episode 15, beginning with filling-draining cycles in the vent before abruptly transitioning to significant fountaining.
Volcano word of the day: PatienceWhile not exclusive to volcanology, this term is particularly relevant to the ongoing eruption at Kilauea. Timelapse from Mar 29, 2025, shows episode 15. Sequence starts with filling-draining cycles in vent & abruptly shifts to major fountaining. pic.twitter.com/nUlTbh7KhQ
— USGS Volcanoes (@USGSVolcanoes) April 3, 2025
Popocatépetl (Central Mexico): 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: OCNL VA EMS to 19000 ft (5800 m)
Poas (Costa Rica): (3 Apr) 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: ONGOING VA EMS. to 10000 ft (3000 m)
Nevado del Ruiz (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: RPRTS OF VA EMS
Sangay (Ecuador): 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
Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS CONT
Volcano Activity Summary for 4 Apr 2025:
