Map of today's active volcanoesStromboli (Eolian Islands, Italy): (20 Apr) A phase of elevated activity has been taking place at the volcano, leading to a short-lived lava flow on the upper third of the Sciara del Fuoco during the past weekend.Activity has since decreased again and the lava flow is now cooling.Mayon (Luzon Island, Philippines): (20 Apr) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20260420/0034Z VA CLD UNKNOWN REPORTED OBS VA DTG:20/0030ZIbu (Halmahera, Indonesia): (20 Apr) 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 .The full report is as follows: VA TO FL070 OBS ON SAT 19/2340Z MOV S OBS VA DTG:19/2340Z to 7000 ft (2100 m)Dukono (Halmahera): (19 Apr) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 .The full report is as follows: VA TO FL080 OBS AT 19/2150Z MOV SE EST VA DTG:19/2150Z to 8000 ft (2400 m)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: VA MOVG WSW 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 21000 ft (6400 m) altitude or flight level 210 .The full report is as follows: VA EMS MOVG E 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 18000 ft (5500 m) altitude or flight level 180 .The full report is as follows: RCNT VONA RPRT to 18000 ft (5500 m)Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 and is moving at 10 kts in SE direction.The full report is as follows: SPORADIC PUFF EMS to 22000 ft (6700 m)Volcano Activity Summary for 20 Apr 2026: