Volcano Watch

At 10:02 p.m., HST, on Saturday, August 6, a section of altered, thermally-stressed rock enclosing the Halema‘uma‘u Crater lava lake detached from the...

2016 International Training Program course brings together scientists and technicians from around the globe to learn about and practice volcano...

Lava erupting from the Pu‘u ‘Ō‘ō vent entered the ocean along Kīlauea Volcano's south coast this past week for the first time since 2013—perhaps the...

What an exciting time for Kīlauea volcano-watchers! 

On the Island of Hawai‘i, lichens are important colonists of young lava flows, particularly ‘a‘ā lava.

Two years ago, Kīlauea Volcano's "June 27th" flow advanced to the northeast, threatening Pāhoa and creating major disruptions to thousands of...

Readers of Volcano Watch might recall past articles that have described various ways in which the USGS Hawaiian Volcano Observatory (HVO) studies and...

The engagement of written history and geology, two ordinarily separated academic disciplines, has—once more—proven unexpectedly fruitful in our...

Early on the morning of May 24, 2016, USGS Hawaiian Volcano Observatory scientists were alerted by text message that a tiltmeter on the Pu‘u ‘Ō‘ō cone...

During the past 148 years, Mauna Loa Southwest Rift Zone eruptions have sent massive lava flows across Hawai‘i Island's main road six times: in 1868...