News

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...

In past Volcano Watches, we've emphasized a radically new way to view Kīlauea—as an explosive volcano. Though not explosive now, it was dominantly...

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

At the U.S. Geological Survey's (USGS) Hawaiian Volcano Observatory (HVO), we focus on keeping up with the flow of data coming into our systems and...