Uploaded November 2014 | Updated September 2026, 1 week ago

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Night-time video of the active lava dome of Semeru volcano (East Java, Indonesia) in late Sep 2014: note the strong degassing with purple flames, continuous spattering, inflation and deflation of the cake-like dome as if it was breathing, as well as small strombolian explosions.
See also photo: volcanodiscovery.com/photo-of-the-day/2014-nov-20.html
Eruption / volcano info: volcanodiscovery.com/semeru/news.html
Video taken by our expedition leader Andi / VolcanoDiscovery Indonesia (file semeru andi DSC 9205).