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 ...

I don’t like beach camping. Sand gets everywhere, the sites are often crowded, and it’s difficult to feel you’ve accomplished getting away ...

An undersea volcano off the southeastern coast of the Big Island of Hawaii has been rocked by a swarm of more than 70 ...

A magnitude 4.8 earthquake shook the southeastern flank of Mauna Loa volcano on Hawaii island overnight, the U.S. Geological Survey said today.