News

Despite not being in the headlines, Mauna Loa continues to be in a state of unrest based on seismic and deformation monitoring data.

Current configuration of Pu‘u ‘Ō‘ō crater

On Friday, February 12, at 9:23 a.m., HST, a magnitude-4.1 earthquake occurred beneath Kīlauea Volcano's south flank.

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.1 earthquakelocated beneath Kīlauea Volcano's south flank on...

Scattered breakouts northeast of Pu‘u ‘Ō‘ō

In recent weeks, the USGS Hawaiian Volcano Observatory (HVO) has received a number of calls from local residents saying essentially: "Hey, is...

In 1880–1881, a lava flow from Mauna Loa came very close to entering Hilo Bay.

A nuée ardente is a turbulent, fast moving cloud of hot gas and ash erupted from a volcano. 

As the 2016 Volcano Awareness Month comes to an end, so too does our series of "Volcano Watch" articles exploring the geology of the Hawaiian Islands...

As part of Volcano Awareness Month, our January "Volcano Watch" articles are taking us on a geologic tour of the Hawaiian Islands. Today's stop: Maui...