News

Welcome to Hawai‘i Island's 5th annual Volcano Awareness Month!

On January 3, 2014, Kīlauea's Pu‘u ‘Ō‘ō eruption surpasses 31 years of activity. The ongoing eruption has evolved tremendously during its complex...

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

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...

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...

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...

We are currently sandwiched between the Halloween and Thanksgiving holidays as the inexorable march of time brings the winter festivals ever closer...

About a year ago, a Volcano Watch article described recent changes at Lake Waiau, the tiny lake just below Mauna Kea's summit that is Hawai‘i's only...