An eruption was reported at Semeru at 17/1316Z. Ash cloud height and movement are estimated based on earlier satellite imagery and ground reports; latest satellite imagery does not show identifiable ash.Original VAAC bulletin:FVAU02 at 16:50 UTC, 17/08/26 from ADRMVA ADVISORYDTG: 20260817/1650ZVAAC: DARWINVOLCANO: SEMERU 263300PSN: S0806 E11255AREA: INDONESIASOURCE ELEV: 3657M AMSLADVISORY NR: 2026/938INFO SOURCE: HIMAWARI-9, CVGHM, WEBCAMERUPTION DETAILS: ERUPTION REPORTED AT 17/1316ZEST VA DTG: 17/1630ZEST VA CLD: SFC/FL150 S0808 E11250 - S0742 E11255 - S0745 E11310 - S0758 E11314 - S0811 E11257 MOV NE 05KTFCST VA CLD +6 HR: 17/2230Z SFC/FL150 S0807 E11250 - S0743 E11301 - S0750 E11313 - S0803 E11315 - S0812 E11256FCST VA CLD +12 HR: 18/0430Z SFC/FL150 S0805 E11249 - S0745 E11307 - S0755 E11318 - S0809 E11316 - S0812 E11254FCST VA CLD +18 HR: 18/1030Z SFC/FL150 S0805 E11249 - S0745 E11307 - S0755 E11318 - S0808 E11316 - S0811 E11254RMK: VA NOT IDENTIFIABLE ON LATEST SATELLITE IMAGERY, LAST OBSERVED AT 17/0150Z. GROUND REPORTS INDICATE INTERMITTENT ERUPTIONS ARE ONGOING. VA HEIGHT AND MOVEMENT BASED ON PAST SATELLITE IMAGERY, GROUND REPORTS AND MODEL GUIDANCE.NXT ADVISORY: NO LATER THAN 20260817/2250Z=