News

Late on March 30, a visiting geology student from Oregon fell about 12 m (40 feet) into a crack in the ground between Crater Rim Drive and the rim of...

Nearly on the other side of the planet, the Big Island has a sister, older by at least a couple of million years: Reunion Island, built in the same...

The summits of volcanoes are part of an ever-changing landscape. The summit of Mauna Loa has undergone considerable change in the short period since...

The U.S. Geological Survey's Hawaiian Volcano Observatory currently operates a network of 65 seismic stations. Signals from each station, including...

Haleakalā Crater is a large erosional valley at the summit of Haleakalā volcano, East Maui. It formed after the rimrock lava flows were erupted around...

March 5 is the 36th anniversary of one of Kīlauea's most important eruptions—the 1965 eruption that formed Makaopuhi lava lake. It was the fifth of...

Several scientists from the Hawaiian Volcano Observatory and the University of HAW‘A‘āII attended the Cities on Volcanoes II conference held in...

Whenever a large, destructive earthquake occurs anywhere in the world, such as those in Sumatera and El Salvador on January 13, there is an agency...

The tiny, crescent-shaped island of Molokini lies 4.2 km (3 miles) offshore of Haleakalā volcano, East Maui. Molokini is a volcanic cone that rises...

Many readers have visited Halema`uma`u, but how many have turned the other way and walked across Crater Rim Drive? Within 800 m (half a mile)...