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The Hawaiian Islands form the young end of a chain of more than 125 volcanoes that stretch over 3,720 miles across the north Pacific Ocean.

Hawaiian volcanoes pass through a sequence of eruptive stages as they grow. There are three main types of lavas in Hawai`i which erupt during the...

Geologic mapping has come a long way since the first map accurately showing the locations of lava flows on the Island of Hawai`i was published by...

In a double handful of molten magma (weighing about a pound), there is less than a tenth of an ounce, by weight, of dissolved gas - roughly the same...

The Center for the Study of Active Volcanoes at the University of Hawai`i in Hilo and the U.S. Geological Survey's Hawaiian Volcano Observatory...

The Center for the Study of Active Volcanoes at the University of Hawai`i at Hilo and the U.S. Geological Survey's Hawaiian Volcano Observatory...

Several weeks ago, on August 12, the Center for the Study of Active Volcanoes at the University of Hawai`i at Hilo and the U.S. Geological Survey's...

One of the tools we use to determine the likelihood of future eruptions and earthquakes is to measure changes in the shape of the ground surface.

A symposium will be held this week on Thursday from 8:30 a.m. to 4:30 p.m., at the University of Hawai`i at Hilo, Campus Center Rooms 306 and 307...

This week marks the anniversary of one of the largest of Mauna Loa's historic eruptions. On June 1, 1950, the last great eruption of Mauna Loa began...