Hawaiian Volcano Observatory scientists said “episode 30” of the ongoing Kilauea eruption ended abruptly at 12:55 p.m. today after 12 hours of continuous fountaining.

Gas rose from the Kilauea volcano in Hawaii two days after the lava effusion had ceased. Dramatic footage shows a plume of smoke billowing from the inactive vent at the summit on January 5. The ...

Volcanic smog: The dangerous 'vog' coming from Kilauea in Hawaii Vog forms when sulfur dioxide (SO₂) and other volcanic gases react chemically with atmospheric moisture, oxygen, sunlight, and dust.

In the top panel, lava rises in the north vent in Halemaʻumaʻu prior to Episode 14 on March 19. Note that only a faint, hazy gas plume is visible near the right edge of the lava surface. In the ...

The air agency doesn’t plan to monitor the air or take any immediate steps to protect schools and households from the gas, which can damage lungs and cause neurological effects.

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