Volcano Watch

The New Year is just around the corner, so it's time to remind everyone that January is Volcano Awareness Month on the Island of Hawai‘i.

In mid-November 2016, 70 representatives of volcano observatories from 20 volcanically active nations around the world came together in Vancouver...

Everyone extrapolates facts and makes assumptions based on those facts. Sometimes, such an assumption is repeated so often that it takes on the aura...

High on the slopes of Mauna Loa, the largest active volcano on Earth, a unique Hawaiian seabird struggles for survival. 

For this winter's vog season, new resources are available to help people become familiar with, and minimize their exposure to, vog.

Helicopter pilots and mechanics crucial for monitoring and observing active volcanoes.

GPS is one of the primary tools we use to monitor ground motion and detect what's happening inside and around Hawaiian volcanoes.

The lava lake within Halema‘uma‘u Crater at the summit of Kīlauea Volcano is creating a scene remindful of a messy barbershop floor, except that it's...

Ten years ago shortly after 7:00 a.m., HST, on Sunday, October 15, 2006, two damaging earthquakes struck off the northwest coast of the Island of...

Characterizing earthquakes is one of the most important activities we do at the USGS Hawaiian Volcano Observatory (HVO). Seismicity helps us monitor...

Visitors to the Jaggar Museum and Ka‘ū Desert in Hawai‘i Volcanoes National Park, struck by the appearance of three dark, symmetrical volcanic cones...

In early September 2016, USGS Hawaiian Volcano Observatory (HVO) monitoring instruments on Kīlauea began recording increased rates of inflation and...

People who venture too close to the perilous beauty of an ocean entry face real and present dangers.

Despite severely reduced funding and staffing, Jaggar made an important and successful prediction based on Mauna Loa's past pattern of eruptions. 

To help determine the timing of eruptive activity, geologists use a radiocarbon age-dating technique. Collecting charcoal is the most common method...

While scattered references to "Old Faithful" can be found after 1916, the persistent lava fountain, which played at Kīlauea Volcano for a quarter of a...

The explosive event at Halema‘uma‘u Crater's lava lake on August 6, 2016, was the latest in a series that began in 2008. It is useful to view the...

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...