News

Every few months HVO receives a phone call from a concerned citizen explaining that steam is billowing from a new hole in a yard or pasture. Is this...

Surfers of our Hawaiian Volcano Observatory (HVO) web site might have noticed that, earlier this year, we rolled out a modified web presentation of...

Every so often we receive a number of inquiries from anxious people in Kona about a possible eruption of Hualālai Volcano. The latest spate of...

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...