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Eruption of Dukono in Indonesia

By Scott Bachmeier •

Himawari-9 True Color RGB images (left) and Ash RGB images (right), from 2210 UTC on 07 May to 0400 UTC on 08 May [click to play animated GIF]

10-minute Full Disk scan JMA Himawari-9 True Color RGB and Ash RGB images created using Geo2Grid (above) showed the volcanic cloud resulting from an eruption of Dukono (on the Indonesian island of Halmahera), which began at 2241 UTC on 07 May 2026. Changes in wind direction/speed with height resulted in a complex transport pattern of the volcanic cloud material.

Radiometrically retrieved products from the NOAA/CIMSS Volcanic Cloud Monitoring site (below) were useful to further characterize the Dukono eruption cloud.

Himawari-9 Ash Height derived product, from 2200 UTC on 07 May to 0600 UTC on 08 May [click to play MP4 animation]

Maximum ash heights (above) were in the 10-14 km range, while ash loading values (below) were quite high in some parts of the volcanic cloud.

Himawari-9 Ash Loading derived product, from 2200 UTC on 07 May to 0600 UTC on 08 May [click to play MP4 animation]

Ash effective radius values (below) were also quite high in some parts of the volcanic cloud.

Himawari-9 Ash Effective Radius derived product, from 2200 UTC on 07 May to 0600 UTC on 08 May [click to play MP4 animation]

Categories: Geo2Grid, Himawari-9, Red-Green-Blue (RGB) images, Volcanic activity