Vog forms when sulfur dioxide (SO₂) and other volcanic gases react chemically with atmospheric moisture, oxygen, sunlight, ...

Violent eruptions continue in Hawaii, sending lava hundreds of feet into the air and spreading glass threads over nearby areas.

One of the world’s most active volcanoes, located in Kilauea, Hawaii, erupted for the seventh time since December, according ...

As a result vog levels may rise state-wide this weekend. Mostly dry conditions are expected this weekend. By Monday a cold front will approach the islands bringing wet weather to the state through ...

However, it warned that sulphur dioxide emanating from the fissure would react with other gases in the atmosphere. So-called vog -- volcanic smog -- can affect people and animals, as well as crops.

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The observatory said sulphur dioxide emanating from the fissure would react with other gases in the atmosphere. So-called vog – volcanic smog – can affect people and animals, as well as crops.