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Daily updates about ongoing eruptions, recent images and videos of summit and East Rift Zone volcanic activity, maps, and data about recent earthquakes in Hawaii are posted on the HVO website. 

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and colleagues.

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Volcano Watch — Summertime along the Wailuku River - cool water, cool geology

Volcano Watch — Summertime along the Wailuku River - cool water, cool geology

On hot summer days in Hilo, many people visit the refreshing waters of the Wailuku River. In addition to offering scenic views, lush vegetation, and...

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Volcano Watch — A stone ice cream cone at the 1969 fissure along Chain of Craters Road

Volcano Watch — A stone ice cream cone at the 1969 fissure along Chain of Craters Road

An eruption on May 24, 1969, created a wonderful but underappreciated visitor attraction in Hawai`i Volcanoes National Park, accessible to almost...

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Volcano Watch — The age of youngest volcanic rocks varies greatly among the Hawaiian Islands

Volcano Watch — The age of youngest volcanic rocks varies greatly among the Hawaiian Islands

It's an easy question to answer, "how old is the youngest volcanic rock on the Big Island?" With Kīlauea in virtually continuous eruption, the...

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Volcano Watch — Awareness does not necessarily mean preparedness

Volcano Watch — Awareness does not necessarily mean preparedness

It was heartening to see several delegates at last week's Cities on Volcanoes 3 (COV3) conference who were former students of the Center for the Study...

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Volcano Watch — When ash flows like a fluid

Volcano Watch — When ash flows like a fluid

In response to the reawakening of Anatahan Volcano on May 10, seismologists installed a seismometer on the island on May 20. They returned on June 6...

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Volcano Watch — Cities on Volcanoes 3-an international conference with evening programs for the public

Volcano Watch — Cities on Volcanoes 3-an international conference with evening programs for the public

Many volcanoes are attractive places to live. Good soil, sweeping views, rugged beauty-all these features lure us to volcanic settings. Auckland and...

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Volcano Watch — Cooperative training by University of Hawai`i and Hawaiian Volcano Observatory

Volcano Watch — Cooperative training by University of Hawai`i and Hawaiian Volcano Observatory

This week the Hawaiian Volcano Observatory is cooperating with the University of Hawai`i to conduct a workshop in volcanology for graduate students...

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Volcano Watch — The Anatahan eruption: what might happen down the road

Volcano Watch — The Anatahan eruption: what might happen down the road

The eruption of Anatahan Volcano in the Commonwealth of the Northern Mariana Islands (CNMI) continues. It has generated much interest in the...

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Volcano Watch — Impermeable beds trap rain and snow at Mauna Kea's Lake Waiau

Volcano Watch — Impermeable beds trap rain and snow at Mauna Kea's Lake Waiau

Lake Waiau, at an altitude of 3,969 m (13,020 ft) atop Mauna Kea, is the only alpine lake in the Hawaiian island chain. It is thought to have formed...

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Volcano Watch — Carbon dioxide in Kīlauea's tiny bubbles makes the champagne's punch

Volcano Watch — Carbon dioxide in Kīlauea's tiny bubbles makes the champagne's punch

For the past couple of weeks, Kīlauea had presented us with a flurry of tiny earthquakes located at a shallow depth beneath the volcano's summit. The...

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Volcano Watch — Two eruptions bordering the Pacific plate: one huge, one small but ongoing

Volcano Watch — Two eruptions bordering the Pacific plate: one huge, one small but ongoing

This week is the 91st anniversary of the largest eruption on earth since Krakatau exploded in 1883. We are also ending the 4th week of an ongoing...

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Volcano Watch — Kīlauea and Masaya celebrate secrets of "sisterhood"

Volcano Watch — Kīlauea and Masaya celebrate secrets of "sisterhood"

Many of us are aware of the "sister city" program, in which two cities form a relationship to promote understanding, cultural and educational exchange...

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