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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 — A new meaning for "the gravity of the situation"

Volcano Watch — A new meaning for "the gravity of the situation"

Most of us think of gravity as a constant. Students of physics know that gravitational acceleration is 9.8 m per second-squared (32 ft/s/s), while the...

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Photo and Video Chronology - Kīlauea - July 12, 2012

Photo and Video Chronology - Kīlauea - July 12, 2012

Surface flows on pali and coastal plain; small lava lake in Pu‘u ‘Ō‘ō.

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Volcano Watch — Eyes to the sky measure volcanic gas passing by

Volcano Watch — Eyes to the sky measure volcanic gas passing by

The use of fingerprints, first considered as a means of identification in the 1880s, is now ubiquitous in murder mysteries, TV crime shows, and...

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Volcano Watch — Except for a little friction, Kīlauea's summit and rift zones are well connected

Volcano Watch — Except for a little friction, Kīlauea's summit and rift zones are well connected

When William Ellis, the first Western visitor to the summit of Kīlauea, looked out over the broad and deep caldera in 1823, he noted that it "had been...

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Photo and Video Chronology - Kīlauea - June 29, 2012

Photo and Video Chronology - Kīlauea - June 29, 2012

Widespread flows on coastal plain and pali, but little advancement.

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Volcano Watch — Can geothermal energy development be balanced with volcanic hazards in Hawai‘i?

Volcano Watch — Can geothermal energy development be balanced with volcanic hazards in Hawai‘i?

For decades, the State of Hawaii has been trying to reduce our dependence on fossil fuels. Energy from Hawai‘i geothermal resources is but one of...

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Volcano Watch — Tarawera's 1886 eruption is one to remember

Volcano Watch — Tarawera's 1886 eruption is one to remember

Hawai‘i's eruptions over the past several decades have been relatively benign, being characterized mostly by persistent lava lake activity or lava...

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Photo and Video Chronology - Kīlauea - June 15, 2012

Photo and Video Chronology - Kīlauea - June 15, 2012

Lava flows on the pali and coastal plain, and a lava pond in Pu‘u ‘Ō‘ō.

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Volcano Watch — Infrasound is coming to HVO…can you hear it?

Volcano Watch — Infrasound is coming to HVO…can you hear it?

Erupting volcanoes are obviously noisy places, but there are sounds that we do not hear as well. Infrasound is an acoustic wave with a frequency that...

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Volcano Watch — What will it take to grow another ice cap on Mauna Kea?

Volcano Watch — What will it take to grow another ice cap on Mauna Kea?

In the past half-million years, Mauna Kea has supported an ice cap at least four times. These glaciations occur when the climate is cold and wet, when...

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Photo and Video Chronology - Kīlauea - June 12, 2012

Photo and Video Chronology - Kīlauea - June 12, 2012

Image of ongoing lava flow activity.

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Photo and Video Chronology - Kīlauea - May 31, 2012

Photo and Video Chronology - Kīlauea - May 31, 2012

New breakouts on pali and coastal plain.

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