Volcano Watch

Merapi volcano, on the island of Java, began to make headlines in late March, when increasing seismicity led the Volcanological Survey of Indonesia...

Thomas Jaggar, the scientist who founded the Hawaiian Volcano Observatory (HVO), is again enthralling visitors to Hawai`i Volcanoes National Park with...

Last week you read about the contributions made by Ben Haravitch, a student from Cornell University (Ithaca, NY), who worked at HVO for the internship...

A two-part Volcano Watch in late January presented evidence for large explosions from Kīlauea. Ash rose into, or even above, the jet stream and was...

Numerous news reports have drawn attention to the impending transition in the Federal workforce. An estimated 60 percent of the Federal civilian...

Last November, 13.8 hectares (34 acres) of newly formed land and 4 hectares (10 acres) of former coastline at East Lae`apuki plunged into the ocean...

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...