That happened two years ago with the world’s largest active volcano. About two months before Mauna Loa spewed rivers of ...

Scientists can’t know precisely when a volcano is about to erupt, but they can sometimes pick up telltale warning signs.

An analysis of crystals in lava from the 2022 eruption of Mauna Loa has revealed an unknown magma reservoir within the ...

Survey, drilling and soil sampling work is underway on Mauna Loa Road in Hawaiʻi Volcanoes National Park as the initial step ...

Geologic mapping has been one of the most fundamental mandates of the U.S. Geological Survey (USGS) since its establishment ...

Mauna Loa is the world's largest active volcano when measured from the ocean floor to its peak, and scientists have warned ...