Overall Green Volcanic eruption alert for Marapi in Indonesia on 14 Oct 2025 04:56 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve awareness, information exchange and coordination in the first phase after major sudden-onset disasters.

Overall Green alert Volcanic eruption for Marapi

in Indonesia

Volcano Ash Advisories for air traffic

Although Volcano Ash Advisories (VAAC) are not intended for assessing humanitarian impact, the observations of the plume are relevant for understanding local impact. The actual impact (like ash fall) depends on the type of eruption and is not known.

Click on the messages list to visualize on the right the detailed text.

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)

14 Oct 04:56 01 Nov 22:57 02 Nov 03:30 03 Nov 05:07 03 Nov 11:07 11 Nov 22:40 12 Nov 04:33

12/11 04:33 2025-173 DARWIN

11/11 22:40 2025-172 DARWIN

03/11 11:07 2025-171 DARWIN

03/11 05:07 2025-170 DARWIN

02/11 03:30 2025-169 DARWIN

01/11 22:57 2025-168 DARWIN

14/10 04:56 2025-167 DARWIN

13/10 22:56 2025-166 DARWIN

09/10 02:30 2025-161 DARWIN

08/10 20:24 2025-160 DARWIN

Volcanic Ash Advisory issued on 2025-11-12 at 04:33 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash last observation before a break in coverage at a manual station rep to flight level 120 (3600m) at 11 2141 UTC.
Volcanic ash remains unidentifaible on latest satellite img, however is likely to have dissipated. No latest report of ongoing eruption has been received. Vaa terminated.

Original Message :

Received FVAU03 at 04:34 UTC, 12/11/25 from ADRM
VA ADVISORY
DTG: 20251112/0433Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/173
INFO SOURCE: HIMAWARI-8, CVGHM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA LAST REP TO FL120 AT 11/2141Z
EST VA DTG: 12/0410Z
EST VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND SFC/FL120 330/20KT
SFC/FL120 330/20KT
FCST VA CLD +6 HR: 12/1010Z NOT AVBL
FCST VA CLD +12 HR: 12/1610Z NO VA EXP
FCST VA CLD +18 HR: 12/2210Z NOT AVBL
RMK: VA REMAINS UNIDENTIFAIBLE ON LATEST SAT IMG, HOWEVER IS
LIKELY TO HAVE DISSIPATED. NO LATEST REPORT OF ONGOING
ERUPTION HAS BEEN RECEIVED. VAA TERMINATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2025-11-11 at 22:40 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash rep to flight level 120 (3600m) at 11 2141 UTC.
Volcanic ash reported to 400m above summit. Volcanic ash unidentifiable on latest satellite img due to meteorological cloud. Volcanic ash height and forecast based on latest ground report, himawari-8 satellite img and model guidance. Volcanic ash expected to dissipate 6.

Original Message :

Received FVAU03 at 22:39 UTC, 11/11/25 from ADRM
VA ADVISORY
DTG: 20251111/2240Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/172
INFO SOURCE: HIMAWARI-8, CVGHM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA REP TO FL120 AT 11/2141Z
EST VA DTG: 11/2220Z
EST VA CLD: SFC/FL120 S0031 E10017 - S0012 E10016 - S0007 E10027 - S0013 E10047 - S0041 E10108 - S0054 E10043 MOV SE 20KT
20KT
FCST VA CLD +6 HR: 12/0420Z NO VA EXP
FCST VA CLD +12 HR: 12/1020Z NO VA EXP
FCST VA CLD +18 HR: 12/1620Z NO VA EXP
RMK: VA REPORTED TO 400M ABOVE SUMMIT. VA UNIDENTIFIABLE ON
LATEST SAT IMG DUE TO MET CLOUD. VA HEIGHT AND FCST BASED ON
LATEST GROUND REPORT, HIMAWARI-8 SAT IMG AND MODEL GUIDANCE.
VA EXPECTED TO DISSIPATE WITHIN 6 HOURS.
NXT ADVISORY: NO LATER THAN 20251112/0440Z=

Volcanic Ash Advisory issued on 2025-11-03 at 11:07 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 110 (3300m) move southeast.
Volcanic ash not identifiable on satellite imagery due to meteorological cloud, however volcanic ash from previous emission expected to have dissipated. No report of new or ongoing eruption. Advisory terminated.

Original Message :

Received FVAU03 at 10:59 UTC, 03/11/25 from ADRM
VA ADVISORY
DTG: 20251103/1107Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/171
INFO SOURCE: HIMAWARI-8, CVGHM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL110 MOV SOUTHEAST
EST VA DTG: 03/1050Z
EST VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND SFC/FL110 300/15KT
SFC/FL110 300/15KT
FCST VA CLD +6 HR: 03/1650Z NO VA EXP
FCST VA CLD +12 HR: 03/2250Z NO VA EXP
FCST VA CLD +18 HR: 04/0450Z NO VA EXP
RMK: VA NOT IDENTIFIABLE ON SATELLITE IMAGERY DUE TO MET
CLOUD, HOWEVER VA FROM PREVIOUS EMISSION EXPECTED TO HAVE
DISSIPATED. NO REPORT OF NEW OR ONGOING ERUPTION. ADVISORY
TERMINATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2025-11-03 at 05:07 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 110 (3300m) move southeast.
Cvghm reported eruption to 300m above summit. Volcanic ash not identifiable on satellite imagery. Volcanic ash height based on ground report and movement based on consensus model guidance. Volcanic ash expected to dissipate.

Original Message :

Received FVAU03 at 05:07 UTC, 03/11/25 from ADRM
VA ADVISORY
DTG: 20251103/0507Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/170
INFO SOURCE: HIMAWARI-8, CVGHM
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL110 MOV SOUTHEAST
EST VA DTG: 03/0440Z
EST VA CLD: SFC/FL110 S0022 E10027 - S0022 E10028 - S0025 E10038 - S0032 E10031 MOV SE 10KT
E10038 - S0032 E10031 MOV SE 10KT
FCST VA CLD +6 HR: 03/1040Z NO VA EXP
FCST VA CLD +12 HR: 03/1640Z NO VA EXP
FCST VA CLD +18 HR: 03/2240Z NO VA EXP
RMK: CVGHM REPORTED ERUPTION TO 300M ABV SUMMIT. VA NOT
IDENTIFIABLE ON SATELLITE IMAGERY. VA HEIGHT BASED ON GROUND
REPORT AND MOVEMENT BASED ON CONSENSUS MODEL GUIDANCE. VA
EXPECTED TO DISSIPATE WITHIN 3-6HRS.
NXT ADVISORY: NO LATER THAN 20251103/1107Z=

Volcanic Ash Advisory issued on 2025-11-02 at 03:30 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 100 (3000m) reported at 01 2211 UTC.
Current satellite imagery indicates that volcanic ash has now dissipated. No reports of new or ongoing eruption. Advisory terminated.

Original Message :

Received FVAU03 at 03:36 UTC, 02/11/25 from ADRM
VA ADVISORY
DTG: 20251102/0330Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/169
INFO SOURCE: CVGHM, HIMAWARI-8
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL100 REPORTED AT 01/2211Z
OBS VA DTG: 02/0310Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND SFC/FL100 280/08KT
SFC/FL100 280/08KT
FCST VA CLD +6 HR: 02/0910Z NO VA EXP
FCST VA CLD +12 HR: 02/1510Z NO VA EXP
FCST VA CLD +18 HR: 02/2110Z NO VA EXP
RMK: CURRENT SATELLITE IMAGERY INDICATES THAT VA HAS NOW
DISSIPATED. NO REPORTS OF NEW OR ONGOING ERUPTION. ADVISORY
TERMINATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2025-11-01 at 22:57 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 100 (3000m) reported at 01 2211 UTC.
Volcanic ash not identifiable on current satellite img due to meteorological cloud obscuration. Cvghm report discrete eruption to 300m above summit. Volcanic ash expected to dissipate the next volcanic ash height and movement based on ground report and model guidance.

Original Message :

Received FVAU03 at 22:57 UTC, 01/11/25 from ADRM
VA ADVISORY
DTG: 20251101/2257Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/168
INFO SOURCE: CVGHM, HIMAWARI-8
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL100 REPORTED AT 01/2211Z
EST VA DTG: 01/2230Z
EST VA CLD: SFC/FL100 S0024 E10026 - S0020 E10027 - S0019 E10035 - S0025 E10038 - S0027 E10032 MOV E 10KT
E10035 - S0025 E10038 - S0027 E10032 MOV E 10KT
FCST VA CLD +6 HR: 02/0430Z NO VA EXP
FCST VA CLD +12 HR: 02/1030Z NO VA EXP
FCST VA CLD +18 HR: 02/1630Z NO VA EXP
RMK: VA NOT IDENTIFIABLE ON CURRENT SAT IMG DUE TO MET CLOUD
OBSCURATION. CVGHM REPORT DISCRETE ERUPTION TO 300M ABOVE
SUMMIT. VA EXPECTED TO DISSIPATE WITHIN THE NEXT 6HRS. VA
HEIGHT AND MOVEMENT BASED ON GROUND REPORT AND MODEL
GUIDANCE.
NXT ADVISORY: NO LATER THAN 20251102/0457Z=

Volcanic Ash Advisory issued on 2025-10-14 at 04:56 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Cvghm reported eruption via seismogram at 13 2052 UTC.
Volcanic ash not identifiable on recent satellite img due to meteorological cloud obscuration. Volcanic ash from previous emission expected to have dissipated. No reports of new or ongoing eruption. Advisory terminated.

Original Message :

Received FVAU04 at 04:48 UTC, 14/10/25 from ADRM
VA ADVISORY
DTG: 20251014/0456Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/167
INFO SOURCE: CVGHM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: CVGHM REPORTED ERUPTION VIA SEISMOGRAM AT
13/2052Z
OBS VA DTG: 14/0430Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND SFC/FL120 090/15KT
SFC/FL120 090/15KT
FCST VA CLD +6 HR: 14/1030Z NO VA EXP
FCST VA CLD +12 HR: 14/1630Z NO VA EXP
FCST VA CLD +18 HR: 14/2230Z NO VA EXP
RMK: VA NOT IDENTIFIABLE ON RECENT SAT IMG DUE TO MET CLOUD
OBSCURATION. VA FROM PREVIOUS EMISSION EXPECTED TO HAVE
DISSIPATED. NO REPORTS OF NEW OR ONGOING ERUPTION. ADVISORY
TERMINATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2025-10-13 at 22:56 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Cvghm report eruption via seismogram at 13 2052 UTC.
Volcanic ash not identifiable on recent satellite img. Cvghm vona reports eruption recorded on seismogram. Observation, height and movement estimated based on model guidance. Volcanic ash expected to dissipate.

Original Message :

Received FVAU04 at 22:56 UTC, 13/10/25 from ADRM
VA ADVISORY
DTG: 20251013/2256Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/166
INFO SOURCE: CVGHM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: CVGHM REPORT ERUPTION VIA SEISMOGRAM AT
13/2052Z
EST VA DTG: 13/2230Z
EST VA CLD: SFC/FL120 S0020 E10031 - S0027 E10031 - S0034 E10014 - S0014 E10014 MOV W 05KT
E10014 - S0014 E10014 MOV W 05KT
FCST VA CLD +6 HR: 14/0430Z NO VA EXP
FCST VA CLD +12 HR: 14/1030Z NO VA EXP
FCST VA CLD +18 HR: 14/1630Z NO VA EXP
RMK: VA NOT IDENTIFIABLE ON RECENT SAT IMG. CVGHM VONA
REPORTS ERUPTION RECORDED ON SEISMOGRAM. OBSERVATION, HEIGHT
AND MOVEMENT ESTIMATED BASED ON MODEL GUIDANCE. VA EXPECTED
TO DISSIPATE WITHIN 3-6HRS.
NXT ADVISORY: NO LATER THAN 20251014/0456Z=

Volcanic Ash Advisory issued on 2025-10-09 at 02:30 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 140 (4200m) observation at 08 1950 UTC move e.
Current satellite imagery indicate that ash from the previous eruption has dissipated. No new reports of further eruption. Advisory terminated.

Original Message :

Received FVAU05 at 02:28 UTC, 09/10/25 from ADRM
VA ADVISORY
DTG: 20251009/0230Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/161
INFO SOURCE: CVGHM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL140 OBS AT 08/1950Z MOV E
OBS VA DTG: 09/0210Z
OBS VA CLD: VA NOT IDENTIFIABLE FM SATELLITE DATA WIND SFC/FL140 090/05KT
SFC/FL140 090/05KT
FCST VA CLD +6 HR: 09/0810Z NO VA EXP
FCST VA CLD +12 HR: 09/1410Z NO VA EXP
FCST VA CLD +18 HR: 09/2010Z NO VA EXP
RMK: CURRENT SATELLITE IMAGERY INDICATE THAT ASH FROM THE
PREVIOUS ERUPTION HAS DISSIPATED. NO NEW REPORTS OF FURTHER
ERUPTION. ADVISORY TERMINATED.
NXT ADVISORY: NO FURTHER ADVISORIES=

Volcanic Ash Advisory issued on 2025-10-08 at 20:24 UTC.

Key information extracted from original VAA message :

Aviation Colour Code :

Volcanic ash to flight level 140 (4200m) observation at 08 1950 UTC move e.
Volcanic ash identifiable on satellite imagery. Heigh and movement based on ground report, satellite img and model data. Volcanic ash likely to dissipate in 6.

Original Message :

Received FVAU05 at 20:24 UTC, 08/10/25 from ADRM
VA ADVISORY
DTG: 20251008/2024Z
VAAC: DARWIN
VOLCANO: MARAPI 261140
PSN: S0023 E10028
AREA: INDONESIA
SUMMIT ELEV: 2885M
ADVISORY NR: 2025/160
INFO SOURCE: CVGHM, HIMAWARI-9
AVIATION COLOUR CODE: ORANGE
ERUPTION DETAILS: VA TO FL140 OBS AT 08/1950Z MOV E
OBS VA DTG: 08/1950Z
OBS VA CLD: SFC/FL140 S0026 E10024 - S0018 E10024 - S0007 E10048 - S0020 E10058 - S0032 E10050 MOV E 10KT
E10048 - S0020 E10058 - S0032 E10050 MOV E 10KT
FCST VA CLD +6 HR: 09/0150Z NO VA EXP
FCST VA CLD +12 HR: 09/0750Z NO VA EXP
FCST VA CLD +18 HR: 09/1350Z NO VA EXP
RMK: VA IDENTIFIABLE ON SAT IMAGERY. HEIGH AND MOVEMENT
BASED ON GROUND REPORT, SAT IMG AND MODEL DATA. VA LIKELY TO
DISSIPATE IN 6 HOURS.
NXT ADVISORY: NO LATER THAN 20251009/0230Z=

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