The colossal Axial Seamount, one of the most active and best-monitored underwater volcanoes in the world, could erupt in a ...

At a federal research lab located at 11,135 feet (3,397 meters) of elevation, U.S. scientists measured a consequential record ...

There are two active volcanoes in Hawai'i Volcanoes National Park, Mauna Loa and Kilauea, but Kilauea is the real "must-see." A 4,000-foot-tall mountain, Kilauea has been active since Jan. 3 ...

The first ongoing measurements of CO2 levels were made at Mauna Loa. "Because this station has the longest time record and is also located far away from the main anthropogenic and natural ...