Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 13:57 UTC, 11/04/26 from RJTD VA ADVISORY DTG: 20260411/1357Z VAAC: TOKYO VOLCANO: MAYON 273030 PSN: N1315 E12341 AREA: PHILIPPINES SOURCE ELEV: 2462M AMSL ADVISORY NR: 2026/470 INFO SOURCE: HIMAWARI-9 PHIVOLCS ERUPTION DETAILS: ERUPTION AT 20260411/1331Z FL100 EXTD NW REPORTED OBS VA DTG: 11/1340Z OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL100 050/5KT 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) Washington warned about a volcanic ash plume that rose up to estimated 21000 ft (6400 m) altitude or flight level 210 . The full report is as follows:
FVXX21 at 07:29 UTC, 11/04/26 from KNES VA ADVISORY DTG: 20260411/0727Z
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 05:10 UTC, 11/04/26 from RJTD VA ADVISORY DTG: 20260411/0510Z VAAC: TOKYO VOLCANO: MAYON 273030 PSN: N1315 E12341 AREA: PHILIPPINES SOURCE ELEV: 2462M AMSL ADVISORY NR: 2026/469 INFO SOURCE: HIMAWARI-9 PHIVOLCS ERUPTION DETAILS: ERUPTION AT 20260411/0445Z FL090 EXTD SW REPORTED OBS VA DTG: 11/0450Z OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND FL090 070/5KT 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=
RMK: RCNT VONA RPRT RCVD INDICATING VA EMS MOVG W. VA NOT CRNTLY OBS IN STLT IMAGERY OR WEBCAM. VA FCST THRU T+12 HRS BASED ON NWP MDL GUIDANCE. …COVERDALE
Dempo (Sumatra): (10 Apr) A phreatic eruption at the volcano was detected by the Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG) at 01:39 on 7 April, lasting almost three minutes according to seismic data. Phreatic explosions form when the ejecta consists solely of old country rock, indicating interaction between water and heated conduit-rocks rather than magma itself. A thick gray ash plume rose roughly 2.5 km above the summit and drifted eastward, with light ashfall reported up to 4.7 km away in that direction. … [read more] … [show less] GNSS measurements showed no major deformation between 23 March and 6 April, but tilt data from the Tugu Rimau Station indicated inflation beginning on 2 April.
Kilauea (Hawai’i): (10 Apr) Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAS DISP …9 Apr: The 44th episode 44 of lava fountaining in Halemaʻumaʻu crater at the summit of Kīlauea began at 11:10 a.m. HST on April 9, about one hour ago. The eruption follows essentially the same pattern as almost all preceding episodes over the past 16 months. Lava fountains are now reaching heights around 1,000 ft (300 m) and lava flows are resurfacing the crater floor. … [read more] … [show less] Ground-level sensors near the eruptive vents indicate that winds are blowing from the south, which suggests that volcanic gas emissions and volcanic material may be distributed to the north from Halemaʻumaʻu. All eruptive vents and lava flows are confined to Halemaʻumaʻu crater within Hawaiʻi Volcanoes National Park.
Santiaguito (Guatemala): 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: OCNL VA EM to 14000 ft (4300 m)
Fuego (Guatemala): 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 EMS ONGOING to 14000 ft (4300 m)
Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 . The full report is as follows: ONGOING VA EMS to 20000 ft (6100 m)
Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: PSBL LGT VA EM
Sabancaya (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 . The full report is as follows: VA EMISSION to 23000 ft (7000 m)
