News

Hawai‘i ISLAND, Hawaii —January 2014 is "Volcano Awareness Month," and Kīlauea Volcano will be the focus of two talks presented at the University of...

During the course of an eruption, a volcano can produce a variety of hazards, such as lava flows, pyroclastic flows, and lahars (volcanic mudflows)...

Kahauale‘a 2 flow slowly moving through forest northeast of Pu‘u ‘Ō‘ō. Lava lake in Halema‘uma‘u Crater remains active.

Hawai‘i ISLAND, Hawaii — Mauna Loa's eruptive history and current status are the topics of a talk by Frank Trusdell, U.S. Geological Survey Hawaiian...

The gas emissions from Kīlaueaa volcano have been variable within a fairly steady range for the past few years; however, the numbers that we use to...

During the past year, the USGS Hawaiian Volcano Observatory (HVO), like other federal agencies, dealt with the challenges of budget cuts...

Landsat 8 satellite image of Pu‘u ‘Ō‘ō flow field.

Pele's hair at Halema‘uma‘u.

Kahauale‘a 2 flow still active in forest northeast of Pu‘u ‘Ō‘ō.

Last week we showed that Kīlauea has explosive eruptions that can carry volcanic ash (less than 2 mm or 0.08 in across) and small lapilli (2–64 mm or...