Autor: global-affair

Satellite image of Dukono volcano on 1 Oct 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070.
Original VAAC bulletin:

FVAU01 at 16:27 UTC, 01/10/26 from ADRM
VA ADVISORY
DTG: 20261001/1630Z
VAAC: DARWIN
VOLCANO: DUKONO 268010
PSN: N0142 E12754
AREA: INDONESIA
SOURCE ELEV: 1229M AMSL
ADVISORY NR: 2026/821
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL070 OBS AT 01/1610Z EXTD NE
OBS VA DTG: 01/1610Z
OBS VA CLD: SFC/FL070 N0144 E12747 - N0227 E12807 - N0221
 E12849 - N0158 E12856 - N0136 E12844 - N0135 E12751 MOV NE
 10KT
FCST VA CLD +6 HR: 01/2210Z SFC/FL070 N0136 E12752 - N0142
 E12747 - N0218 E12756 - N0219 E12815 - N0210 E12842 - N0142
 E12849
FCST VA CLD +12 HR: 02/0410Z SFC/FL070 N0135 E12752 - N0145
 E12746 - N0220 E12836 - N0200 E12907 - N0133 E12853
FCST VA CLD +18 HR: 02/1010Z SFC/FL070 N0138 E12747 - N0146
 E12747 - N0217 E12834 - N0203 E12859 - N0137 E12908 - N0122
 E12850
RMK: VA IDENTIFIABLE ON CURRENT SATELLITE RGB IMAGE. HEIGHT
 AND MOVEMENT BASED ON SATELLITE IMAGERY AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261001/2230Z=

Earthquakes under Kilauea volcano's summit caldera

A shallow intrusion of magma is occurring within the summit region near the existing eruption location in Hawai’i Volcanoes National Park, the Hawaiian Volcano Observatory reported a short time ago:
„Earthquake activity has increased in the summit region of Kīlauea beneath Halemaʻumaʻu crater and the south caldera region. Ground deformation patterns recorded by summit tiltmeters suggest that magma is intruding beneath the ground in this area, in an east-west orientation, near the western or southern part of Halemaʻumaʻu crater.

Increased earthquake activity began this afternoon, September 30, 2026, at approximately 2 p.m. HST, underneath Halemaʻumaʻu. Since then, about 40 earthquakes have been detected and activity is still on-going. The largest event so far, a magnitude 3.4 earthquake, occurred at 9:52 p.m. HST, 1.4 km (0.9 miles) beneath the surface in the northeast part of Halemaʻumaʻu. Starting around 8 p.m. HST, summit tiltmeters began to show extremely rapid changes consistent with crack growth in an east-west orientation, possibly near the current vent area, suggesting that magma is intruding in this region.

Historically, east-west-trending fissures have erupted in the southeastern part of Halemaʻumaʻu and extended through the Keanakākoʻi crater area all the way to Chain of Craters Road near Lua Manu. The last east-west fissure in this area erupted in September 2023 and extended from the middle of Halemaʻumaʻu to the eastern wall just beneath the Keanakākoʻi overlook. An event of this type is also possible under current conditions.

Currently, there are no signs of a change at the surface as the existing eruptive vent complex in Halemaʻumaʻu, including the north and south vents, continues to intermittently spatter with strong glow and flames; however, conditions could change quickly. It is possible that this event ends without reaching the surface or it produces a fissure eruption in a new location within the summit caldera region.

Current activity is restricted to the summit region of Kīlauea. No anomalous activity has been detected in the East Rift Zone or Southwest Rift Zone.

The USGS Hawaiian Volcano Observatory is monitoring the situation closely and will issue additional messages as needed.“

Satellite image of Lewotolo volcano on 1 Oct 2026

Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Darwin warned of a volcanic ash plume rising to an estimated 7000 ft (2100 m), or flight level 070.
Original VAAC bulletin:

FVAU04 at 08:08 UTC, 01/10/26 from ADRM
VA ADVISORY
DTG: 20261001/0810Z
VAAC: DARWIN
VOLCANO: LEWOTOLOK 264230
PSN: S0816 E12330
AREA: INDONESIA
SOURCE ELEV: 1423M AMSL
ADVISORY NR: 2026/295
INFO SOURCE: HIMAWARI-9
ERUPTION DETAILS: VA TO FL070 OBS AT 01/0750Z MOV WNW
OBS VA DTG: 01/0750Z
OBS VA CLD: SFC/FL070 S0818 E12331 - S0812 E12248 - S0755
 E12247 - S0751 E12302 - S0815 E12332 MOV NW 15KT
FCST VA CLD +6 HR: 01/1350Z SFC/FL070 S0815 E12332 - S0819
 E12331 - S0820 E12252 - S0807 E12248 - S0759 E12258
FCST VA CLD +12 HR: 01/1950Z SFC/FL070 S0815 E12332 - S0819
 E12331 - S0821 E12244 - S0809 E12238 - S0757 E12250
FCST VA CLD +18 HR: 02/0150Z SFC/FL070 S0815 E12333 - S0819
 E12332 - S0823 E12245 - S0808 E12236 - S0755 E12249
RMK: VA EMISSIONS IDENTIFIABLE ON SATELLITE IMAGERY.
 EMISSIONS EXPECTED TO BE ONGOING. HEIGHT AND MOVEMENT BASED
 ON RECENT SATELLITE IMAGERY AND MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261001/1410Z=

Satellite image of Marapi volcano on 1 Oct 2026

The Volcanic Ash Advisory Center (VAAC) Darwin issued the following bulletin.
Original VAAC bulletin:

FVAU06 at 03:38 UTC, 01/10/26 from ADRM
VA ADVISORY
DTG: 20261001/0338Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SOURCE ELEV: 2885M AMSL
ADVISORY NR: 2026/84
INFO SOURCE: CVGHM
ERUPTION DETAILS: CVGHM REPORTED ERUPTION AT 01/0300Z
EST VA DTG: 01/0320Z
EST VA CLD: SFC/FL110 S0019 E10027 - S0023 E10033 - S0038
 E10026 - S0034 E10012 - S0020 E10014 MOV SW 05KT
FCST VA CLD +6 HR: 01/0920Z NO VA EXP
FCST VA CLD +12 HR: 01/1520Z NO VA EXP
FCST VA CLD +18 HR: 01/2120Z NO VA EXP
RMK: ERUPTION REPORTED FROM GROUND. VA NOT OBSERVED ON
 SATELLITE DUE TO MET CLOUD BUT ANY VA EMISSIONS LIKELY TO
 DISSIPATE WITHIN 6 HOURS. FORECAST BASED ON MODEL GUIDANCE.
NXT ADVISORY: NO LATER THAN 20261001/0938Z=