Volcano Watch

Among the scientists who study volcanoes, the petrologists are the ones who do detailed studies of the "hot stuff" in order to understand the behavior...

Visitors to Hawai`i from northern climates arrive with dreams of sunny beaches and gentle breezes. But this winter, rains of biblical proportions...

This week marks the 100-year anniversary of the 1906 San Francisco earthquake, the most deadly earthquake to have hit the United States in recorded...

The summit of Kīlauea began inflating in the fall of 2003. This was a major change, because, for the most part, it had been doing the opposite...

The Galapagos Islands are perhaps best known for their unique species of plants and animals and their role in influencing Charles Darwin and others in...

The U.S. Geological Survey recently made available the digital geologic map for the Island of Hawai`i. Compiled by Frank Trusdell of the Hawaiian...

Within the broad spectrum of volcanic activity that is possible on Earth, the eruption of lava domes is a common and frequently hazardous phenomenon...

The lava ocean entry at East Lae`apuki, on the southern shoreline of Kīlauea Volcano, has been active for 15 months. Lava flows rapidly from Pu`u `O`o...

Five volcanoes erupting in the United States within the past two months - Kīlauea, Mount St. Helens, and Augustine, Mt. Cleveland, and possibly...

On cool, still mornings at the top of Kīlauea, visitors looking across the summit caldera can see a palpable example of the Earth breathing. Wisps of...

An old Hawaiian chant tells of a mysterious, powerful place in North Kohala, where two streams begin side by side but run in opposite directions and...

A significant volcanic eruption is in progress right now in Alaska, though it hasn't received much media attention. Augustine Volcano, named by...

HVO loses one of its most versatile research scientists next week, when Rick Hoblitt returns to his home base, the Cascades Volcano Observatory (CVO)...

The past five years, especially the past 18 months, have seen profound changes in the way HVO scientists view Last week's Volcano Watch highlighted...

The past five years, especially the past 18 months, have seen profound changes in the way HVO scientists view Kīlauea's explosive potential.

It has become somewhat of a New Year's habit, in a January Volcano Watch report prepared by the U. S. Geological Survey's Hawaiian Volcano Observatory...

As we enter the New Year with the eruption of Kīlauea Volcano still going strong after 23 years, it is important to remember the world's other...

Many eruptions are brief affairs. The volcano wakes up, erupts for a few days to a few months, then goes back to sleep. When the Pu`u `O`o eruption...

If you ever do spend Christmas on that South Pacific island, make sure Santa knows where to land his canoe of presents for you, as there are actually...

Last week, Earth Scientists from all over the world gathered for the annual American Geophysical Union fall meeting in San Francisco. Researchers...