Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory ...

The Volcano Observatory Notice to Aviation (VONA) is a notification product used by volcano observatories globally to inform ...

Add Yahoo as a preferred source to see more of our stories on Google. A magnitude 4.6 earthquake shook Hawaii on Tuesday night, striking on the southern side of the Kilauea volcano, which has had ...

POPOCATÉPETL VOLCANO, Mexico -- In the predawn darkness, a team of scientists climbs the slope of Mexico's Popocatépetl volcano, one of the world's most active and whose eruption could affect ...

Back in January, SFGATE was on the ground in the national park during a previous eruption episode that also rained tephra ...