Map of today's active volcanoesShiveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 and is moving at 10 kts in SE direction.The full report is as follows: VA EMISSIONS CONTINUING OBS VA DTG:08/1120Z to 14000 ft (4300 m)Iwo-jima (Volcano Islands): A new phreatomagmatic eruption took place at the volcano on 1 September.At about 07:14 PM local time, a mixture of dark black volcanic ash, lapilli, glowing bombs and seawater was being thrown to a height of several dozen meters above sea level. A certain amount of lighter pumice was also present in the ash, probably representing a batch of fresh magma that had driven the explosion. A pumice raft has been observed floating towards the other side of the island. ... [read more] ... [show less] The eruption formed a new crater called Chidorihama, from which a white-to-grey ash plume continues to rise.Phreatomagmatic activity means that erupting magma reacts with external water, e.g. ground water, lake water, sea water etc.Canlaon (Central Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20250908/0925Z FL090 EXTD WSW REPORTED OBS VA DTG:08/0930ZIbu (Halmahera, Indonesia): (8 Sep) 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 W direction.The full report is as follows: VA TO FL070 OBS AT 08/0140Z OBS VA DTG:08/0140Z to 7000 ft (2100 m)Lewotolo (Lesser Sunda Islands): (8 Sep) 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 LAST REP AT 07/2147Z MOV W OBS VA DTG:08/0420Z to 7000 ft (2100 m)Semeru (East Java, Indonesia): (7 Sep) 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 07/2243Z EST VA DTG:07/2243Z to 15000 ft (4600 m)Marapi (Western Sumatra, Indonesia): (8 Sep) 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 REP AT 08/0206Z MOV E EST VA DTG:08/0220Z to 13000 ft (4000 m)Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL LGT VA EMSSantiaguito (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 ashFuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL VA EM LKLYNevado del Ruiz (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EM DETECTEDSangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL LGT VA EMReventador (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: VA EM LKLY to 14000 ft (4300 m)Volcano Activity Summary for 8 Sep 2025: