Eruption of Krakatoa viewed under clear skies

Filter by


EUMETSAT Users Twitter

RSS Feed

RSS Icon Image Library

On 22-26 September 2018 there was a rare opportunity to see an eruption from the Indonesian volcano Krakatoa under clear skies.

Eruption of Krakatoa viewed under clear skies
Date & Time
22 September 2018 04:00 UTC–26 September 05:00 UTC
Volcanic Ash RGB

By HansPeter Roesli (Switzerland)

It is difficult to get clear views from space of erupting Indonesian volcanoes. But in late September the eruption from the volcano Krakatoa (Krakatau) offered such an occasion, as documented by a sequence of Volcanic Ash RGBs from Himawari-8 on 22–26 September (Figure 2).

Figure 2: Himawari-8 Volcanic Ash RGB animation, 22 Sept 04:00 UTC–26 Sept 05:00 UTC. Download animation (MP4, 19 MB).

The Global Volcanism Program of the Smithsonian Institution reported: “Based on satellite data, wind model data, and notices from PVMBG, the Darwin VAAC reported that during 18-24 September ash plumes from Anak Krakatau rose to altitudes of 0.9–3.7 km (3,000–12,000 ft) a.s.l. and drifted in multiple directions. The Alert Level remained at 2 (on a scale of 1–4); residents and visitors were warned not to approach the volcano within 2 km of the crater. “

The animation in Figure 2 shows that skies were mostly clear, in particular on 24 September, where the dark-magenta coloured, long ash plume was most prominent. On 22 September, between 09:20 UTC and 10:30 UTC, an SO2 plume was also very visible, e.g. at 10:10 UTC the green plume to the right of the red arrow on Figure 1 (top right, click to expand).


Related content

Activity at Krakatau (NASA Earth Observatory)

Previous cases studies

We use essential cookies to ensure that we give you the best experience on our website. To analyse website traffic we also use third-party performance cookies. If you are ok with the use of essential as well as non-essential cookies, please select Accept & Continue. Instructions on how to prevent the use of non-essential cookies are available under our Terms Of Use, or simply select Decline Cookies.