Volcano Watch

When filling out felt earthquake reports, many people describe strange behavior by their pets just before an earthquake.

As the largest volcano in the world, Mauna Loa's bulk dominates Hawai`i Island. Understandably, it might be viewed as a solid, immovable mountain...

As candidates spar over the current economic crisis, how it happened, and how we might recover, one thing seems clear here in Hawai`i: Kīlauea is in...

This week, access to Turrialba Volcano National Park in Costa Rica, was temporarily closed because elevated gas emissions were blown into visitor...

Ever heard of Higaturu? How about Popendetta? You'll find the town of Popendetta on a map of Papua New Guinea, about 90 miles northeast of Port...

The Cascades Volcano Observatory, one of the Hawaiian Volcano Observatory's sister observatories, has worked in the past two weeks to install new...

"So, how far down is the lava?"

Explosive eruptions on three remote Aleutian islands this summer during a three-week period generated large ash and gas-rich clouds that kept...

Many readers know that a party of warriors and their families led by Keoua was decimated by an explosive eruption (called Keonehelelei—the falling...

Though nearly all of the seismic data processing, analysis, and presentation at the U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) have...