Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 . The full report is as follows:
FVAU03 at 07:16 UTC, 14/05/26 from ADRM VA ADVISORY DTG: 20260514/0715Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N0142 E12754 AREA: INDONESIA SOURCE ELEV: 1229M AMSL ADVISORY NR: 2026/247 INFO SOURCE: HIMAWARI-9, CVGHM ERUPTION DETAILS: VA TO FL160 OBS AT 14/0650Z MOV SW OBS VA DTG: 14/0650Z OBS VA CLD: SFC/FL160 N0140 E12756 – N0037 E12544 – N0106 E12528 – N0136 E12602 – N0145 E12756 MOV SW 15KT FCST VA CLD +6 HR: 14/1250Z SFC/FL160 N0140 E12756 – N0017 E12538 – N0042 E12458 – N0135 E12517 – N0145 E12756 FCST VA CLD +12 HR: 14/1850Z SFC/FL160 N0140 E12757 – N0023 E12540 – N0048 E12453 – N0145 E12512 – N0146 E12755 FCST VA CLD +18 HR: 15/0050Z SFC/FL160 N0145 E12755 – N0140 E12758 – N0012 E12538 – N0054 E12453 – N0139 E12513 RMK: VA IDENTIFIABLE ON LATEST VISIBLE AND RGB SATELLITE IMAGERY. VA HEIGHT BASED ON GROUND REPORT OF VA 3500M ABOVE SUMMIT AT 13/2212Z AND IR TEMP OF 2C AT 13/2220Z. VA MOVEMENT BASED ON HIMAWARI-9 SAT IMG AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260514/1315Z=
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 04:22 UTC, 14/05/26 from RJTD VA ADVISORY DTG: 20260514/0422Z VAAC: TOKYO VOLCANO: MAYON 273030 PSN: N1315 E12341 AREA: PHILIPPINES SOURCE ELEV: 2462M AMSL ADVISORY NR: 2026/609 INFO SOURCE: HIMAWARI-9 PHIVOLCS ERUPTION DETAILS: ERUPTION AT 20260514/0406Z VA CLD UNKNOWN REPORTED OBS VA DTG: 14/0400Z OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL180 020/3KT FCST VA CLD +6 HR: NOT AVBL FCST VA CLD +12 HR: NOT AVBL FCST VA CLD +18 HR: NOT AVBL RMK: WE WILL ISSUE FURTHER ADVISORY IF VA IS DETECTED IN SATELLITE IMAGERY. NXT ADVISORY: NO FURTHER ADVISORIES=
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 . The full report is as follows:
FVAU03 at 00:39 UTC, 14/05/26 from ADRM VA ADVISORY DTG: 20260514/0040Z VAAC: DARWIN VOLCANO: DUKONO 268010 PSN: N0142 E12754 AREA: INDONESIA SOURCE ELEV: 1229M AMSL ADVISORY NR: 2026/245 INFO SOURCE: HIMAWARI-9, CVGHM ERUPTION DETAILS: VA TO FL160 OBS AT 14/0020Z MOV W OBS VA DTG: 14/0020Z OBS VA CLD: SFC/FL160 N0140 E12756 – N0124 E12718 – N0146 E12714 – N0145 E12756 MOV W 05KT FCST VA CLD +6 HR: 14/0620Z SFC/FL160 N0140 E12756 – N0107 E12704 – N0152 E12700 – N0145 E12756 FCST VA CLD +12 HR: 14/1220Z SFC/FL160 N0140 E12756 – N0107 E12704 – N0153 E12700 – N0145 E12756 FCST VA CLD +18 HR: 14/1820Z SFC/FL160 N0140 E12756 – N0103 E12707 – N0148 E12656 – N0145 E12756 RMK: VA CURRENTLY IDENTIFIABLE ON VISIBLE AND RGB SATELLITE IMAGERY. VA HEIGHT BASED ON GROUND REPORT OF VA 3500M ABOVE SUMMIT AT 13/2212Z AND IR TEMP OF 2C AT 13/2220Z. VA MOVEMENT BASED ON HIMAWARI-9 SAT IMG AND MODEL GUIDANCE. NXT ADVISORY: NO LATER THAN 20260514/0640Z=
Bezymianny (Kamchatka): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 15000 ft (4600 m) altitude or flight level 150 and is moving at 25 kts in SW direction. The full report is as follows: VA AT 20260513/2000Z FL150 EXTD SW OBS VA DTG:13/2000Z to 15000 ft (4600 m)
Canlaon (Central Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Kanlaon on 12 May 2026 (local). Plume(s) rose to a maximum of 600 m (1,969 ft) above the vent. Crater glow was visible to the naked eye. Volcanic seismicity was recorded 2 times. Ground deformation monitoring indicated that a gradual rate of inflation has been ongoing since 2022. Sulfur dioxide (SO₂) emissions averaged 410 tonnes per day on 10 May. The alert level remained at „2 – Moderate Level of Volcanic Unrest“ (on a 0–5 level scale). Activity also included: volcanic seismicity. Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) … [read more] … [show less] Current Alerts: Observatory alert level: „2 – Moderate Level of Volcanic Unrest“ (on a 0–5 level scale)
Taal (Luzon, Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Taal on 12 May 2026 (local). The alert level remained at „1 – Low-Level Unrest“ (on a 0–5 level scale). Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) … [read more] … [show less] Current Alerts: Observatory alert level: „1 – Low-Level Unrest“ (on a 0–5 level scale)
Mayon (Luzon Island, Philippines): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: UNKNOWN OBS VA DTG:NOT PROVIDED …13 May: The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Mayon on 12 May 2026 (local). Lava effusion continued from the summit crater. As of 12 May, lava flow lengths remained at 3.8 km in the Basud Gully (E flank), 3.2 km in the Bonga Gully (SE flank), and 1.6 km in the Mi-isi Gully (S flank). Minor episodic Strombolian activity was observed. Short-lived lava fountaining was recorded at 1938 on 9 May. Plume(s) rose to a maximum of 200 m (656 ft) above the vent. Volcanic seismicity was recorded 35 times. Tremor episodes were recorded 26 times. There were 350 seismically detected rockfalls. Seismicity related to pyroclastic density currents was recorded 7 times. Crater glow was visible to the naked eye. Sulfur dioxide (SO₂) emissions averaged 1,295 tonnes per day on 12 May. Ground deformation indicated short-term deflation across the volcanic edifice, with shorter-term inflation localized on the NE flank. The alert level remained at „3 – Increased Tendency Towards Hazardous Eruption“ (on a 0–5 level scale). Activity also included: seismically detected pyroclastic density current(s) (PDCs), tremor, volcanic seismicity. Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) … [read more] … [show less] Current Alerts: Observatory alert level: „3 – Increased Tendency Towards Hazardous Eruption“ (on a 0–5 level scale)
Bulusan (Luzon Island, Philippines): The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest continued at Bulusan on 12 May 2026 (local). Plume(s) rose to a maximum of 100 m (328 ft) above the vent. Volcanic seismicity was recorded 86 times. The alert level remained at „1 – Low Level of Volcanic Unrest“ (on a 0–5 level scale). Activity also included: inflationary deformation, volcanic seismicity. Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS) … [read more] … [show less] Current Alerts: Observatory alert level: „1 – Low Level of Volcanic Unrest“ (on a 0–5 level scale)
Central Bismarck Sea (Admiralty Islands): The Department of Mineral Policy and Geohazards Management, Geohazards Management Division (DMPGM) reported that an eruption began at Central Bismarck Sea between 8 May 2026 (local) and 12 May 2026 (local). A submarine eruption began on 8 May, and was ongoing as of the report issued on 12 May. The site is believed to be the same location as a submarine eruption in 1972, situated near the junction of two segments along the N margin of the South Bismarck Plate. Satellite imagery acquired on 10 May showed a large steam plume rising to 3,000 m above the eruption center. A plume of shallow sediment and discolored water approximately 9 km by 11 km in size was also observed in the satellite data, indicative of active submarine venting. The eruption was preceded by seismic activity recorded at the same location on 31 March and 25 April. Then, a small swarm consisting of 6 earthquakes was recorded on 8 May. Activity also included: thermal anomaly(ies). Source: Department of Mineral Policy and Geohazards Management, Geohazards Management Division (DMPGM) … [read more] … [show less] Current Alerts: Observatory alert level: unavailable or not collected
Telong (northern Sumatra, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Telong, Bur ni on 12 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)
Karangetang (Siau Island, Sangihe Islands, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Karangetang on 12 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)
Raung (East Java): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Raung on 12 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)
Gamalama (Halmahera): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Gamalama on 12 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)
Slamet (Central Java, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Slamet on 12 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): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 12 May 2026 (local). Gas and vapor plume(s) rose to a maximum of 200 m (656 ft) above the vent. There were 120 explosions reported, with plumes rising to a maximum of 400 m (1,312 ft) above the vent. 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)
Tangkubanparahu (West Java): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) issued a report for Tangkuban Parahu on 12 May 2026 (local). The alert level remained at „Level 1 – Normal“ (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 1 – Normal“ (on a 4-level scale)
Sangeang Api (Flores Sea, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Sangeang Api on 12 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)
Tambora (Sumbawa): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Tambora on 12 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)
Lewotobi (Flores): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotobi (Laki-Laki) on 12 May 2026 (local). The alert level was raised to „Level 3 – Standby“ (on a 4-level scale) on 12 May 2026 at 1300 by CVGHM/PVMBG due to elevated deep volcanic seismicity, ground deformation, and episodes of non-harmonic tremor. Gas and vapor plume(s) were reported. The number of deep volcanic earthquakes reached 21–32 events per day, representing the peak of deep seismicity during 1–4 May. During 1–11 May, non-harmonic tremor counts remained high, with 17–27 events recorded per day. Between 5 and 10 May, deep volcanic seismicity declined to 8–12 events per day, which remained above baseline levels. Activity also included: inflationary deformation. 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)
Soputan (North Sulawesi, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Soputan on 12 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): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Lewotolok on 12 May 2026 (local). Gas and vapor plume(s) rose to a maximum of 20 m (66 ft) above the vent. There were 6 seismically detected explosions reported. 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)
Sorikmarapi (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Sorikmarapi on 12 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)
Krakatau (Sunda Strait, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Krakatau on 12 May 2026 (local). Gas plume(s) rose to a maximum of 10 m (33 ft) above the vent. 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)
Merapi (Central Java, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Merapi on 12 May 2026 (local). Gas and vapor plume(s) rose to a maximum of 100 m (328 ft) above the vent. There were 3 hot rockfalls, traveling up to 1,700 m. There were 89 seismically detected rockfalls. 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)
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 10 kts in NW direction. The full report is as follows: VA TO FL150 LAST REPORTED AT 13/1200Z MOV NW to 15000 ft (4600 m) …13 May: The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Semeru on 12 May 2026 (local). There were 61 explosions reported, with plumes rising to a maximum of 1,000 m (3,281 ft) above the vent. There were 6 seismically detected rockfalls. 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)
Ijen (East Java, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) issued a report for Ijen on 12 May 2026 (local). The alert level remained at „Level 1 – Normal“ (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 1 – Normal“ (on a 4-level scale)
Marapi (Western Sumatra, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Marapi on 12 May 2026 (local). Gas and vapor plume(s) rose to a maximum of 200 m (656 ft) above the vent. There was 1 seismically detected explosion reported. 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)
Dempo (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Dempo on 12 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)
Dukono (Halmahera): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Dukono on 12 May 2026 (local). There were 27 explosions reported, with plumes rising to a maximum of 4,300 m (14,108 ft) above the vent. 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)
Awu (Sulawesi & Sangihe Islands): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Awu on 12 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)
Kerinci (Sumatra): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Kerinci on 12 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)
Lokon-Empung (North Sulawesi, Indonesia): The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that unrest continued at Lokon-Empung on 12 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)
Kilauea (Hawai’i): The United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO) reported that there was a pause in eruptive activity at Kilauea between 11 May 2026 (local) and 12 May 2026 (local). The alert level remained at „Advisory“ (level 2 on a 4-level scale). The aviation alert level remained at „Yellow“ (level 2 on a 4-level scale). Source: United States Geological Survey – Hawaiian Volcano Observatory (USGS-HVO) … [read more] … [show less] Current Alerts: Observatory alert level: „Advisory“ (level 2 on a 4-level scale)
Shishaldin (Aleutian Islands, Alaska): The Observatorio Argentino de Vigilancia Volcánica (OAVV) reported that unrest continued at Shishaldin between 11 May 2026 (local) and 12 May 2026 (local). The alert level remained at „Yellow“ (level 2 on a 4-level scale). The alert level remained at „Advisory“ (level 2 on a 4-level scale). Source: Observatorio Argentino de Vigilancia Volcánica (OAVV) … [read more] … [show less] Current Alerts: Observatory alert level: „Advisory“ (level 2 on a 4-level scale)
Great Sitkin (United States, Aleutian Islands): The Observatorio Argentino de Vigilancia Volcánica (OAVV) reported that the eruption continued at Great Sitkin between 11 May 2026 (local) and 12 May 2026 (local). The alert level remained at „Watch“ (level 3 on a 4-level scale). The aviation alert level remained at „Orange“ (level 3 on a 4-level scale). Source: Observatorio Argentino de Vigilancia Volcánica (OAVV) … [read more] … [show less] Current Alerts: Observatory alert level: „Watch“ (level 3 on a 4-level scale)
Kupreanof (United States, Alaska Peninsula): The United States Geological Survey (USGS) and United States Geological Survey – Alaska Volcano Observatory (USGS-AVO) reported that unrest continued at Kupreanof between 9 May 2026 (local) and 12 May 2026 (local). The alert level was raised to „Advisory“ (level 2 on a 4-level scale) on 12 May 2026 at 0901 by USGS in response to sustained elevated seismicity and sulfur dioxide emissions, which AVO interpreted as ongoing magmatic intrusion beneath the volcano. No volcanic ash cloud produced. The aviation alert level was raised to „Yellow“ (level 2 on a 4-level scale) on 12 May 2026 at 0901 by USGS. Source: United States Geological Survey (USGS); United States Geological Survey – Alaska Volcano Observatory (USGS-AVO) … [read more] … [show less] Current Alerts: Observatory alert level: „Advisory“ (level 2 on a 4-level scale)
…13 May: The Alaska Volcano Observatory reported that a seismic activity and sulfur dioxide emissions at the volcano have risen over the past several months and remain elevated. This pattern is consistent with magmatic intrusion beneath the volcano. In response to the ongoing unrest, AVO has raised the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY. Current data do not indicate that an eruption is imminent, and additional signs of escalating unrest would typically appear before any eruptive activity. Although cloud cover obscured the volcano today, elevated seismic signals were detected on regional monitoring stations. … [read more] … [show less] Mount Kupreanof does not have its own real‑time geophysical monitoring network. The nearest operational seismometers—part of the Mount Veniaminof network—are located about 17 miles (27 km) east of the volcano. Monitoring also relies on satellite observations, remote infrasound and lightning detection systems, and visual reports from pilots and mariners traveling near the area.
Popocatépetl (Central Mexico): The Centro Nacional de Prevención de Desastres (CENAPRED) reported that the eruption continued at Popocatépetl between 11 May 2026 (local) and 12 May 2026 (local). Ash, gas, and vapor plume(s) were reported. At 1240 on 11 May, a M1.3 volcano-tectonic (VT) earthquake was recorded. At 1310 on 11 May, a M1.1 VT earthquake was recorded. 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 EM
Fuego (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 ash
Puracé (Colombia): 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
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 . The full report is as follows: ONGOING VA EM to 22000 ft (6700 m) …13 May: The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Sangay between 11 May 2026 (local) and 12 May 2026 (local). The alert level remained at „2 – Yellow“ (on a 4-level scale). 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: VA EM DETECTED …13 May: The Instituto Geofísico-Escuela Politécnica Nacional (IG-EPN) reported that the eruption continued at Reventador between 11 May 2026 (local) and 12 May 2026 (local). The alert level remained at „3 – Orange“ (on a 4-level scale). 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): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: NO VA EMISSION …13 May: The Centro Vulcanológico Nacional del Instituto Geofísico del Perú (CENVUL-IGP) reported that the eruption continued at Sabancaya between 11 May 2026 (local) and 12 May 2026 (local). The alert level remained at „Orange“ (level 3 on a 4-level scale). Source: Centro Vulcanológico Nacional del Instituto Geofísico del Perú (CENVUL-IGP) … [read more] … [show less] Current Alerts: Observatory alert level: „Orange“ (level 3 on a 4-level scale)
Laguna del Maule (Central Chile): The Observatorio Argentino de Vigilancia Volcánica (OAVV) and Servicio Nacional de Geología y Minería (SERNAGEOMIN) issued a report for Maule, Laguna del on 12 May 2026 (local). The alert level remained at „Green“ (level 1 on a 4-level scale). Source: Observatorio Argentino de Vigilancia Volcánica (OAVV); Servicio Nacional de Geología y Minería (SERNAGEOMIN) … [read more] … [show less] Current Alerts: Observatory alert level: „Green“ (level 1 on a 4-level scale)
A newly reported submarine eruption in the Central Bismarck Sea led today’s activity snapshot. Explosive activity and lava effusion continued at several long-lived eruptions, including Indonesia and the Philippines. Since the previous day, Indonesia’s Lewotobi was raised to Level 3 and Alaska’s Kupreanof moved to Advisory with Aviation Yellow.
United States Great Sitkin (Watch / Aviation ORANGE) remained in eruption. On Hawaii’s Big Island, Kilauea stayed at Advisory / Aviation Yellow with eruptive activity paused. In the Aleutians, Kupreanof was raised to Advisory / Aviation Yellow on sustained elevated seismicity and SO2 emissions; no ash was detected. Shishaldin continued in unrest at Advisory / Aviation Yellow.
Indonesia Heightened unrest at Lewotobi prompted an alert raise to Level 3 amid elevated deep earthquakes, non-harmonic tremor, and deformation; gas emissions were observed. Eruptive activity featured frequent explosions at Semeru (ash to 1 km), Dukono (27 blasts, ash to 4.3 km), and Ibu (about 120 small explosions to 0.4 km). On Java and Sumatra, Merapi produced hot avalanches traveling up to 1.7 km, while Marapi and Lewotolok emitted low plumes with a few explosions. Several others across the arc showed ongoing Level 2 unrest without notable ash.
Philippines At Mayon, lava effusion kept flows active to 3.8 km (Basud), 3.2 km (Bonga), and 1.6 km (Mi-isi), with minor Strombolian bursts and SO2 averaging 1,295 t/d. Kanlaon produced plumes to 600 m with crater glow and weak seismicity amid a long-term inflation trend. Taal maintained low-level unrest, while Bulusan registered 86 volcanic earthquakes and brief low plumes.
Mexico Popocatepetl emitted ash-and-gas plumes; two small VT quakes (M1.3 and M1.1) were recorded under Yellow Phase 2.
South America In Ecuador, Reventador and Sangay remained in eruption with alerts unchanged. Peru’s Sabancaya continued erupting at Orange.
Other A submarine eruption at the Central Bismarck Sea produced a steam plume to 3 km and a 9 x 11 km patch of discolored water; earlier small seismic swarms preceded the activity.
