Kategorie: News

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 05 kts in E direction.
The full report is as follows:

FVAU02 at 13:19 UTC, 31/07/26 from ADRM
VA ADVISORY
DTG: 20260731/1320Z
VAAC: DARWIN
VOLCANO: SEMERU 263300
PSN: S0806 E11255
AREA: INDONESIA
SOURCE ELEV: 3657M AMSL
ADVISORY NR: 2026/869
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA TO FL150 LAST REPORTED AT 31/1248Z MOV
NE
EST VA DTG: 31/1300Z
EST VA CLD: SFC/FL150 S0808 E11252 – S0804 E11251 – S0752
E11309 – S0802 E11315 – S0812 E11312 MOV E 05KT
FCST VA CLD +6 HR: 31/1900Z SFC/FL150 S0804 E11252 – S0752
E11309 – S0802 E11315 – S0812 E11312 – S0809 E11253
FCST VA CLD +12 HR: 01/0100Z SFC/FL150 S0809 E11253 – S0803
E11252 – S0754 E11258 – S0758 E11312 – S0814 E11308
FCST VA CLD +18 HR: 01/0700Z SFC/FL150 S0808 E11252 – S0755
E11252 – S0751 E11301 – S0757 E11315 – S0815 E11309
RMK: VA NOT IDENTIFIABLE ON SATELLITE. AREA OBSC BY MET CLD.
DISCRETE VA EMISSIONS ARE ONGOING. VA HEIGHT AND FCST BASED
ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260731/1920Z=

Violent strombolian activity during last night's paroxysm at the Voragine (image: Catania Fotoreporter / facebook)

The effusive activity (lava flow emission), which began yesterday at 20:49 local time in the upper Valle del Leone area from a new vent at an altitude of approximately 2,700 m above sea level, continues after the end of last night’s second paroxysm from the Voragine crater.

According to the volcano observatory, it had reached an estimated altitude of around 1,700-1,750 m above sea level in the area above Rocca Capra by around 10 am this morning.
The flow is currently advancing only slowly.

Yesterday, July 30, intense strombolian activity from the Voragine crater—which had gradually decreased until temporarily ceasing around 13:00 local time, restarted around 18:50 and gradually regained strength, reaching a very sustained level around 21:55. The activity continued with sustained fountaining until approximately 01:40 am this morning, then abruptly ceased around 02:00 am. Ash plumes rose to approximately 7,000 m above sea level and spread in a southwesterly direction.

Spectacular images of the eruption can be found widely on social media, for example:

Thermal view from the east side showing Etna's new lava flow (image: INGV webcam)

Satellite image of Ibu volcano on 31 Jul 2026

Volcanic Ash Advisory Center Darwin (VAAC) issued the following report:

FVAU03 at 05:16 UTC, 31/07/26 from ADRM
VA ADVISORY
DTG: 20260731/0520Z
VAAC: DARWIN
VOLCANO: IBU 268030
PSN: N0129 E12738
AREA: INDONESIA
SOURCE ELEV: 1325M AMSL
ADVISORY NR: 2026/858
INFO SOURCE: HIMAWARI-9, CVGHM
ERUPTION DETAILS: VA LAST REPORTED AT 31/0156Z MOV NE
EST VA DTG: 31/0500Z
EST VA CLD: SFC/FL070 N0127 E12739 – N0129 E12734 – N0152
E12734 – N0146 E12754 MOV NE 10KT
FCST VA CLD +6 HR: 31/1100Z SFC/FL070 N0128 E12736 – N0151
E12737 – N0146 E12755 – N0127 E12740
FCST VA CLD +12 HR: 31/1700Z SFC/FL070 N0127 E12739 – N0129
E12735 – N0151 E12743 – N0141 E12759
FCST VA CLD +18 HR: 31/2300Z SFC/FL070 N0127 E12738 – N0130
E12735 – N0149 E12747 – N0144 E12756 – N0136 E12759
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGE. AREA OBSC BY
MET CLD. DISCRETE VA EMISSIONS ARE ONGOING. VA HEIGHT AND
FCST BASED ON SATELLITE IMAGERY, GROUND REPORTS AND MODEL
GUIDANCE.
NXT ADVISORY: NO LATER THAN 20260731/1120Z=