News

The ground surface subsided abruptly about six weeks ago at Pu`u `O`o, Kīlauea Volcano's active cinder-cone vent. Gaping cracks opened around the...

A visitor recently asked, "Does Kīlauea erupt more often at the summit or along its two rift zones?" Let's try to answer that question.

A common sight this time of year, particularly in Puna and the National Park, is a bright yellow tripod topped with a white disk. Usually seen...

Few landscape changes are as extreme as that between the windward and leeward sides of Kīlauea's caldera. Simply drive from the Visitor Center in...

The hot-spot theory is the well-known modern explanation for the origin of the Hawaiian island chain. In it, the Pacific plate drifts northwestward...

Kīlauea wasn't always like it is today. Two hundred thousand years and the change from a seamount to an island can do a lot to a volcano. The trick is...

HVO scientists have developed techniques to study conditions in the interior of active lava tubes and flows by making measurements on and above their...

The last couple of weeks have been exciting ones to be studying active volcanism in Hawai'i. To start with, after several months of fairly constant...

The basic strategy in monitoring a volcano has not changed much since 1912 when Thomas A. Jaggar founded HVO. He recognized the importance of...

On the night of June 1, 1950, after many residents of Ho`okena-mauka village in South Kona had already gone to bed, Mauna Loa began to erupt. Soon the...