Volcano Watch

HVO's first volcanic activity update, written by Frank Perret, the most famous American volcanologist of his time, appeared in the Pacific Commercial...

Earlier this month, a key subset of the U.S. Geological Survey's (USGS) Hawaiian Volcano Observatory (HVO) seismographic network was upgraded. This...

This week marks the occasion of the 1,000th published Volcano Watch article. For nearly two decades, these articles, written predominantly by the...

"Is the volcano dead?" "When will it erupt again?"

Lava erupting steadily inside the crater of Pu‘u ‘Ō‘ō during the past three months is slowly approaching the lava high point of March 5, just before...

The sight of seven majestic voyaging canoes (vaka) in Hilo Bay last weekend was awe-inspiring. The vaka from Aotearoa (New Zealand), Tahiti, Cook...

A recent scientific paper has re-kindled a long-running debate over the presence, shape, and depth of mantle plumes (sometimes called hot spots) under...

As we approach the 100th anniversary of the Hawaiian Volcano Observatory (HVO), we have realized that, while 1912 has long been recognized as the year...

Unbeknownst to many people, Frank A. Perret actually began the work of the Hawaiian Volcano Observatory (HVO) in the summer of 1911. (Thomas A. Jaggar...

On May 21, 2011, Grímsvötn volcano awoke from a 7-year eruptive slumber, producing an ash and gas plume about 17 km (10.6 miles) high. The eruption...