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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.

Filter Total Items: 1817
Volcano Watch — Be prepared for the zombie apocalypse—and other emergencies

Volcano Watch — Be prepared for the zombie apocalypse—and other emergencies

Popular cultural phenomena come and go: Elvis Presley, Mickey Mouse, and hula hoops have all come in and out of fashion repeatedly. But for many...

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Volcano Watch — Has Halema‘uma‘u's lava lake changed in 100 years?

Volcano Watch — Has Halema‘uma‘u's lava lake changed in 100 years?

With the 100th anniversary of the Hawaiian Volcano Observatory fast approaching, many scientists at the observatory are thinking about how the current...

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Volcano Watch — Pu‘u ‘Ō‘ō quietly and slowly building new flow field

Volcano Watch — Pu‘u ‘Ō‘ō quietly and slowly building new flow field

Without the dramatic flourish of recent events, lava is quietly erupting from Kīlauea's newest fissure, which opened September 21 on the east rim of...

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Volcano Watch — Netquakes and Shakemaps—How you can get involved in HVO seismology

Volcano Watch — Netquakes and Shakemaps—How you can get involved in HVO seismology

On October 19, 2011, a magnitude-4.5 earthquake struck on the northwest flank of Mauna Kea at 2:10 p.m., HST, followed by more than 50 aftershocks...

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Volcano Watch — Columnar jointing provides clues to cooling history of lava flows

Volcano Watch — Columnar jointing provides clues to cooling history of lava flows

Above Hilo’s iconic Rainbow Falls on the Wailuku River is Boiling Pots. This area, named for the many "potholes" in the river bed, churns and roils...

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Volcano Watch — Volcanic Gas studies in Hawaii—then and now

Volcano Watch — Volcanic Gas studies in Hawaii—then and now

What a difference a century (or even a few years) can make! As noted in an earlier Volcano Watch (June 5, 2011), 1911 was a dynamic year for science...

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Volcano Watch — How Thomas Jaggar's vision became the Hawaiian Volcano Observatory

Volcano Watch — How Thomas Jaggar's vision became the Hawaiian Volcano Observatory

One hundred years ago, Frank Perret, world-famous volcanologist, was watching the lava lake action in Halema‘uma‘u Crater. Honolulu businessmen and...

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Volcano Watch — Infamous Mount Tambora is rumbling again

Volcano Watch — Infamous Mount Tambora is rumbling again

Skies darkened, temperatures plunged, crops failed, and disease and famine ensued. These and other strange phenomena afflicted people around the world...

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Volcano Watch — Pu‘u ‘Ō‘ō shifts direction again

Volcano Watch — Pu‘u ‘Ō‘ō shifts direction again

Anyone watching the Webcams positioned on and around Pu‘u ‘Ō‘ō in the early morning hours of Wednesday, September 21, would have seen a marked change...

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Volcano Watch — No bottle of rum for these pirates: The unforeseen effect of ship attacks in the Indian Ocean

Volcano Watch — No bottle of rum for these pirates: The unforeseen effect of ship attacks in the Indian Ocean

Jack Sparrow, the central figure of the popular "Pirates of the Caribbean" movie tetrology, is an intriguing and charismatic character. Real-life...

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Volcano Watch — Can earthquakes trigger volcanic eruptions?

Volcano Watch — Can earthquakes trigger volcanic eruptions?

Seismologists are often asked the question, "Can large earthquakes trigger volcanic eruptions?" The short answer is yes, earthquakes and volcanic...

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Volcano Watch — Lava lakes, islands, and bubbles: 100-year-old descriptions still useful today

Volcano Watch — Lava lakes, islands, and bubbles: 100-year-old descriptions still useful today

In 1911, Frank A. Perret continuously observed the lava lake within Halema‘uma‘u Crater from his temporary residence, a scientific station on the...

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