On 10/28/2026 3:07:52 PM, an earthquake occurred in Japan potentially affecting 100 thousand in MMI V. The earthquake had Magnitude 5.5M, Depth:41.356km.
Semeru Volcano Volcanic Ash Advisory: ERUPTION REP FM GND AT 28/1151Z EST VA DTG: 28/1450Z
The Volcanic Ash Advisory Center (VAAC) Darwin issued the following bulletin.
Original VAAC bulletin:
FVAU02 at 15:00 UTC, 28/10/26 from ADRM
VA ADVISORY
DTG: 20261028/1510Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/1233
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: ERUPTION REP FM GND AT 28/1151Z
EST VA DTG: 28/1450Z
EST VA CLD: SFC/FL150 S0804 E11258 - S0824 E11305 - S0834
E11252 - S0822 E11238 - S0803 E11252 MOV S 05KT
FCST VA CLD +6 HR: 28/2050Z SFC/FL150 S0803 E11302 - S0826
E11301 - S0828 E11242 - S0811 E11234 - S0757 E11252
FCST VA CLD +12 HR: 29/0250Z SFC/FL150 S0801 E11259 - S0812
E11300 - S0822 E11236 - S0808 E11224 - S0755 E11234
FCST VA CLD +18 HR: 29/0850Z SFC/FL150 S0805 E11303 - S0814
E11255 - S0810 E11234 - S0754 E11235 - S0749 E11249 - S0749
E11249
RMK: VA NOT IDENTIFIABLE ON RECENT SATELLITE IMAGERY DUE TO
MET CLOUD. REGULAR GROUND REPORTS INDICATE INTERMITTENT
ERUPTIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON
SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261028/2110Z=
Reventador Volcanic Ash Advisory: ash plume to 15,000 ft (4,600 m) as of Oct 28, 10:50 UTC
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 15000 ft (4600 m), or flight level 150.
Original VAAC bulletin:
FVXX21 at 11:35 UTC, 28/10/26 from KNES
VA ADVISORY
DTG: 20261028/1132Z
VAAC: WASHINGTON
VOLCANO: REVENTADOR 352010
PSN: S0004 W07739
AREA: ECUADOR
SOURCE ELEV: 11686 FT AMSL
ADVISORY NR: 2026/1134
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.
ERUPTION DETAILS: FRQT VA EMS
OBS VA DTG: 28/1050Z
OBS VA CLD: SFC/FL150 S0004 W07802 - S0004 W07739
- S0007 W07738 - S0022 W07757 - S0004 W07802 MOV
SW 5KT
FCST VA CLD +6HR: 28/1700Z SFC/FL150 S0005 W07739
- S0007 W07738 - S0029 W07756 - S0014 W07805 -
S0005 W07739
FCST VA CLD +12HR: 28/2300Z SFC/FL150 S0005
W07739 - S0007 W07738 - S0028 W07801 - S0009
W07809 - S0005 W07739
FCST VA CLD +18HR: 29/0500Z SFC/FL150 S0001
W07807 - S0004 W07738 - S0006 W07738 - S0018
W07805 - S0001 W07807
RMK: FRQT VA EMS SEEN ON WEBCAM AND DETECTED ON
STLT IMG MOVG SW FM SUMMIT EXT APPRX 20NMI. NWP
MDLS FCST GEN SW MVMT THRU T+18. ...BUTLER
NXT ADVISORY: WILL BE ISSUED BY 20261028/1730Z
Green earthquake (Magnitude 5.5M, Depth:10km) in Reykjanes Ridge 28/10/2026 11:37 UTC, [unknown].
Popocatépetl Volcanic Ash Advisory: ash plume to 20,000 ft (6,100 m) as of Oct 28, 06:46 UTC
Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 20000 ft (6100 m), or flight level 200.
Original VAAC bulletin:
FVXX25 at 07:03 UTC, 28/10/26 from KNES
VA ADVISORY
DTG: 20261028/0659Z
VAAC: WASHINGTON
VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837
AREA: MEXICO
SOURCE ELEV: 17693 FT AMSL
ADVISORY NR: 2026/367
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.
ERUPTION DETAILS: NEW VA EMS
OBS VA DTG: 28/0646Z
OBS VA CLD: SFC/FL200 N1921 W09835 - N1918 W09826
- N1902 W09836 - N1901 W09837 - N1921 W09835 MOV
N 10KT
FCST VA CLD +6HR: 28/1300Z SFC/FL200 N1929 W09827
- N1901 W09837 - N1901 W09838 - N1928 W09841 -
N1929 W09827
FCST VA CLD +12HR: 28/1900Z SFC/FL200 N1929
W09838 - N1901 W09837 - N1901 W09838 - N1926
W09850 - N1929 W09838
FCST VA CLD +18HR: 29/0100Z NO VA EXP
RMK: VA PLUME DETECTED ON STLT MOVG NNE OF
SUMMIT. WEBCAM SHOWS CONS VA EMS. MDL WINDS AT FL
FCST TO BACK OVR NXT 12 HR BECMG MORE FM THE SSE.
...KONON
NXT ADVISORY: WILL BE ISSUED BY 20261028/1300Z