Volcanoes

Toxic Cloud From HI Volcano Lava Seen Over Ocean



(21 May 2018) White plumes of acid and extremely fine shards of glass billowed into the sky over Hawaii as molten rock from Kilauea volcano poured into the ocean, creating yet another hazard from an eruption that began more than two weeks ago: A toxic steam cloud.
Authorities on Sunday warned the public to stay away the cloud that formed by a chemical reaction when lava touched seawater.
Further upslope, lava continued gushing out of large cracks in the ground in residential neighborhoods in a rural part of the Big Island.
The molten rock made rivers that bisected forests and farms as it meandered toward the coast.
The rate of sulfur dioxide gas shooting from the ground fissures tripled, leading Hawaii County to repeat warnings about air quality.
At the volcano’s summit, two explosive eruptions unleashed clouds of ash. Winds carried much of it toward the southwest.
Scientists said the steam clouds at the spots where lava entered the ocean were laced with hydrochloric acid and fine glass particles that can irritate skin and eyes and cause breathing problems.
The lava haze called “laze” from the plume spread as far as 15 miles (24 kilometers) west of where the lava met the ocean on the Big Island’s southern coast.
It was just offshore and running parallel to the coast, said U.S. Geological Survey scientist Wendy Stovall.
Scientists said the acid in the plume was about as corrosive as diluted battery acid.
The glass was in the form of fine glass shards. Getting hit by it might feel like being sprinkled with glitter.

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