News

What makes a volcano a volcano? This was the topic of a “Volcano Watch” article about 20 years ago. Recent questions from visitors suggest this...

Earth Day (https://www.earthday.org/) was first established on April 22, 1970, to raise awareness of some of the harmful effects industrialization was...

The original purpose of geologic mapping in Hawaiʻi was to understand the distribution of groundwater and soils to support agriculture. But as...

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.7 earthquake located offshore of the island of Maui on Tuesday...

Many messages to AskHVO (askHVO@usgs.gov) request resources relating to geologic maps and geographic information systems (GIS) data. "Is there a map...

Information about how to stay informed about Hawaiian volcanoes.

January 2019 is Hawaiʻi Island's 10th annual Volcano Awareness Month.

Earthquakes in Hawaii are intimately related to the volcanoes. In addition to helping scientists track moving magma, sometimes they happen simply...

Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present public lectures as planned.

Due to the lapse in appropriations, USGS Hawaiian Volcano Observatory scientists are unable to present lectures as planned.