Volcano Watch

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...

A pair of devastating eruptions in the Caribbean 99 years ago this week shook the world and, as fate would have it, led indirectly to the founding of...

In last week's article we mentioned that April is tsunami awareness month in Hawai`i and earthquakeawareness month in California.

Early Monday morning, residents of the northern half of the island were awakened by a magnitude-3.9 earthquake. This was a gentle reminder that we...

Here's a riddle for you—which large land holder on the Big Island condemns property at will, holds liens on large parts of the island, and doesn't pay...

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...