News

Since Mauna Loa began showing signs of renewed restlessness in mid-2002, we have put a lot of effort into improving our capability for detecting the...

East Lae`apuki lava delta and small skylight

As residents of Hawai`i, we are, for the most part, acutely aware of volcanic processes and products. This is especially true for those of us living...

Sampling lava and Pu`u `O`o

Like much of the world, HVOers have been following the events surrounding hurricanes Katrina and Rita in the past months. Extreme phenomena like...

By day, the six vents arrayed across the crater floor of Pu`u `O`o emit copious clouds of steam and magmatic gas. Darkness reveals that many of them...

Skylight and spatter

Almost exactly one year ago today, the first signs of reawakening were detected at Mount St. Helens in Washington. On September 23, 2004, a small...

Pu`u `O`o's crater and East Lae`apuki lava delta

Dallas Peck, one of the finest geologists to have matriculated at the Hawaiʻian Volcano Observatory, died August 21 in Fairfax, Virginia, at the age...