Map of today's active volcanoesSakurajima (Kyushu, Japan): (27 May) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: VA AT 20260527/0512Z 10NM SW OF HKC FL100 REPORTED OBS VA DTG:27/0500ZMayon (Luzon Island, Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20260527/1328Z FL090 REPORTED OBS VA DTG:27/1330ZIbu (Halmahera, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: ERUPTION REPORTED AT 27/1055Z EST VA DTG:27/1710ZSemeru (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 SW direction.The full report is as follows: VA TO FL150 LAST REP AT 27/0016Z EST VA DTG:27/1140Z to 15000 ft (4600 m)Dukono (Halmahera): (26 May) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA REPORTED TO FL070 MOV E AT 26/2120Z EST VA DTG:26/2220ZPopocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: NO VA EMSSantiaguito (Guatemala): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington 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: FREQUENT VA EMS to 13000 ft (4000 m)...27 May:A new thermal anomaly detected by Sentinel‑2 indicates that a new lava‑flow eruption is likely underway. It appears that a new flank vent has opened on the western slope, suggesting that magma has intruded into a dyke.Regarding the explosive activity, near‑constant weak to moderate Vulcanian‑style eruptions continue at regular intervals of one to two per hour.Fuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ONGOING VA EMSPuracé (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS PSBLSangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS PSBLReventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL VA EMSSabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 15 kts in SE direction.The full report is as follows: VA EMISSION to 23000 ft (7000 m)Volcano Activity Summary for 27 May 2026: