3+ day, 15+ hour ago  (254+ words) The United States Geological Survey - Alaska Volcano Observatory (USGS-AVO) reported that the eruption continued at Great Sitkin between 19 May 2026 (local) and 20 May 2026 (local). The alert level remained at "Watch" (level 3 on a 4-level scale). The aviation alert level remained at…...

3+ day, 15+ hour ago  (212+ words) The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that unrest activity increased at Bulusan on 20 May 2026 (local). The alert level remained at "1 - Low Level of Volcanic Unrest" (on a 05 level scale). Source: Philippine Institute of Volcanology and Seismology (PHIVOLCS)…...

3+ day, 15+ hour ago  (249+ words) The United States Geological Survey - Alaska Volcano Observatory (USGS-AVO) reported that unrest continued at Shishaldin between 19 May 2026 (local) and 20 May 2026 (local). The alert level remained at "Advisory" (level 2 on a 4-level scale). The aviation alert level remained at "Yellow" (level…...

3+ day, 15+ hour ago  (220+ words) The United States Geological Survey - Alaska Volcano Observatory (USGS-AVO) reported that unrest continued at Kupreanof between 19 May 2026 (local) and 20 May 2026 (local). The alert level remained at "Advisory" (level 2 on a 4-level scale). The aviation alert level remained at "Yellow" (level…...

3+ day, 15+ hour ago  (107+ words) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 20 May 2026 (local). The alert level remained at "Level 2 - Alert" (on a 4-level scale). Source: Center for Volcanology…...

4+ day, 15+ hour ago  (242+ words) 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 19 May 2026 (local). Gas and vapor plume(s) rose to a maximum of 200 m (656 ft) above the vent....

4+ day, 15+ hour ago  (256+ words) The Centro Nacional de Prevenci'n de Desastres (CENAPRED) reported that the eruption continued at Popocat'petl between 18 May 2026 (local) and 19 May 2026 (local). Ash, gas, and vapor plume(s) were reported. A total of 198 low-intensity exhalations were recorded, along with 6. 5 minutes of high-frequency…...

4+ day, 15+ hour ago  (252+ words) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Merapi on 19 May 2026 (local). Gas and vapor plume(s) rose to a maximum of 10 m (33 ft) above the vent. Seismicity…...

4+ day, 15+ hour ago  (144+ words) The Center for Volcanology and Geological Hazard/Pusat Vulkanologi dan Mitigasi Bencana Geologi (CVGHM/PVMBG) reported that the eruption continued at Ibu on 19 May 2026 (local). Gas and vapor plume(s) rose to a maximum of 200 m (656 ft) above the vent. There…...

4+ day, 15+ hour ago  (347+ words) The Philippine Institute of Volcanology and Seismology (PHIVOLCS) reported that the eruption continued at Mayon on 19 May 2026 (local). Plume(s) rose to a maximum of 400 m (1, 312 ft) above the vent. Volcanic seismicity was recorded 26 times. Tremor episodes were recorded 15 times. There…...