News

Petrology is literally the "study of rocks," and looking carefully at the rocks coming out of a volcano is necessary in order to understand what's...

On May 21, 2010, Kīlauea Volcano's ongoing eruption reached a milestone:
10,000 days!

At HVO's Monday meeting, geologist Tim Orr updated the staff on current eruption conditions at Kīlauea's summit, east rift zone vents and flow field.

Regular visitors to HVO's daily update Web page might notice what seems like a minor change in one of Kīlauea two ongoing eruptions. While sulfur...

All of us lose something as we age, and, about 500 years ago, Kīlauea lost its top. The summit collapsed to form a precipitous hole, known as a...

What volcanic locale do the following characteristics describe?

This past Friday, March 19, marked the second anniversary of Kīlauea ongoing summit eruption in Halema`uma`u Crater. After 25 years without eruptive...

A magnitude-4.5 earthquake was located on the northeast flank of Mauna Kea by the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) on...

Alert observers of Kīlauea ongoing summit eruption often note the changing character of the ever-present plume emerging from Halema`uma`u. Sometimes...

Long-time Kīlauea Volcano watchers know the drill when the supply of magma to the active vent on the volcano's east rift zone is interrupted...