Map of today's active volcanoesStromboli (Eolian Islands, Italy): (28 May) The National Institute of Geophysics and Volcanology, Etnean Observatory (INGV) reported that a new lava flow erupted from the North Crater area onto the Sciara del Fuoco flank.At the same time, intense spattering and strombolian explosions continue from the North and Central-South crater areas.No significant change in other observed volcanic parameters (seismic, degassing, deformation) was observed.Shiveluch (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 27000 ft (8200 m) altitude or flight level 270 and is moving at 15 kts in SE direction.The full report is as follows: VA CONTINUOUSLY OBS IN SATELLITE IMAGERY OBS VA DTG:28/1720Z to 27000 ft (8200 m)Canlaon (Central Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20260528/1350Z FL100 EXTD SW REPORTED OBS VA DTG:28/1350ZMayon (Luzon Island, Philippines): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20260528/1332Z VA CLD UNKNOWN REPORTED OBS VA DTG:28/1330ZGamalama (Halmahera): (28 May) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Gamalama on 27 May 2026 (local). The alert level remained at "Level 2 - Alert" (on a 4-level scale).Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)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 .The full report is as follows: VA TO FL070 REPORTED AT 28/1510Z MOV NE EST VA DTG:28/1700Z to 7000 ft (2100 m)...28 May:The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 27 May 2026 (local). The alert level remained at "Level 2 - Alert" (on a 4-level scale).Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)Lewotolo (Lesser Sunda Islands): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 5000 ft (1500 m) altitude or flight level 050 .The full report is as follows: VA TO FL050 MOV NE EST VA DTG:28/1550Z to 5000 ft (1500 m)...28 May:The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotolok on 27 May 2026 (local). Ash and gas plume(s) rose to a maximum of 50 m (164 ft) above the vent. There were 7 seismically detected explosions reported. There was 1 seismically detected rockfall. The alert level remained at "Level 2 - Alert" (on a 4-level scale).Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 2 - Alert" (on a 4-level scale)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 .The full report is as follows: VA TO FL150 MOV SE OBS VA DTG:28/1130Z to 15000 ft (4600 m)...28 May:The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 27 May 2026 (local). The alert level remained at "Level 3 - Standby" (on a 4-level scale).Source: Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Level 3 - Standby" (on a 4-level scale)Dukono (Halmahera): 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 AT 28/0900Z MOV E EST VA DTG:28/1930Z to 7000 ft (2100 m)Aoba (Vanuatu): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Wellington warned about a volcanic ash plume that rose up to estimated 4000 ft (1200 m) altitude or flight level 040 and is moving at 05 kts in E direction.The full report is as follows: ERUPTION AT 20260528/0950Z ONGOING LOW-LEVEL ERUPTION. to 4000 ft (1200 m)Popocatépetl (Central Mexico): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: DISCRETE VA EM...28 May:The Centro Nacional de Prevención de Desastres (CENAPRED) reported that the eruption continued at Popocatépetl between 26 May 2026 (local) and 27 May 2026 (local). Ash, gas, and vapor plume(s) were reported. The alert level remained at "Yellow Alert - Phase 2" (level 4 on a 7-level scale).Source: Centro Nacional de Prevención de Desastres (CENAPRED) ... [read more] ... [show less] Current Alerts:Observatory alert level: "Yellow Alert - Phase 2" (level 4 on a 7-level scale)Santiaguito (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: OCNL VA EMS...28 May:The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Santa María between 26 May 2026 (local) and 27 May 2026 (local). There were explosions reported, with plumes rising to a maximum of 900 m (2,953 ft) above the vent. Glow was observed from the crater of the Caliente Dome. There were incandescent rockfalls.Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) ... [read more] ... [show less] Current Alerts:Observatory alert level: unavailable or not collectedPacaya (Guatemala): (28 May) The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that unrest continued at Pacaya between 26 May 2026 (local) and 27 May 2026 (local). Gas and vapor plume(s) were reported.Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) ... [read more] ... [show less] Current Alerts:Observatory alert level: unavailable or not collectedFuego (Guatemala): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: LGT VA EMS SEEN IN WEBCAM...28 May:The Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) reported that the eruption continued at Fuego between 26 May 2026 (local) and 27 May 2026 (local). There were explosions reported, occurring at a rate of up to 10 per hour, with plumes rising to a maximum of 1,037 m (3,402 ft) above the vent. Some explosions ejected incandescent material up to 300 m above the crater rim.Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) ... [read more] ... [show less] Current Alerts:Observatory alert level: unavailable or not collectedPuracé (Colombia): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL VA EMSSangay (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL VA EMS...28 May:The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Sangay between 26 May 2026 (local) and 27 May 2026 (local). There were 356 seismically detected explosions reported. Ash and gas plume(s) rose to a maximum of 800 m (2,625 ft) above the vent. The alert level remained at "2 - Yellow" (on a 4-level scale). Activity also included: thermal anomaly(ies).Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) ... [read more] ... [show less] Current Alerts:Observatory alert level: "2 - Yellow" (on a 4-level scale)Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: POSS VA EMS CONTG...28 May:The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 26 May 2026 (local) and 27 May 2026 (local). There were 70 seismically detected explosions reported. Ash and gas plume(s) rose to a maximum of 600 m (1,969 ft) above the vent. There were incandescent rockfalls. The alert level remained at "3 - Orange" (on a 4-level scale). Activity also included: thermal anomaly(ies).Source: Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) ... [read more] ... [show less] Current Alerts:Observatory alert level: "3 - Orange" (on a 4-level scale)Sabancaya (Peru): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Buenos Aires warned about a volcanic ash plume that rose up to estimated 24000 ft (7300 m) altitude or flight level 240 .The full report is as follows: SPORADIC EMISSION OF VA to 24000 ft (7300 m)