Vog from Fagradalsfjall completely obscures view to the volcano, Iceland
Image credit: Sigfús Steindórsson
Volcanic smog (vog) is a visible haze comprised of gas and an aerosol of tiny particles and acidic droplets created when sulfur dioxide (SO2) and other gases emitted from a volcano chemically interact with sunlight and atmospheric oxygen, moisture, and dust.
Called Blámóða in Icelandic, or blue smog… blámóða killed thousands of Icelanders 1783-1785 when a volcano erupted.
The video was captured on July 2.
Teo Blašković founded The Watchers in 2011 and edited it until 2026, covering seismic and volcanic activity, extreme weather, space weather and near-Earth objects. Articles on this page are his archive.
