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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 — Pillow fight helped America win its independence

Volcano Watch — Pillow fight helped America win its independence

The July 4 holiday is both a great time to spend with friends and family and also a time to reflect on our nation's origins.

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USGS HVO Press Release — Magnitude-4.5 earthquake north of Moloka‘i

USGS HVO Press Release — Magnitude-4.5 earthquake north of Moloka‘i

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude-4.5 earthquakelocated north of the Island of Moloka‘i on Friday...

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Volcano Watch — If a picture is worth a thousand words, a geologic map is priceless

Volcano Watch — If a picture is worth a thousand words, a geologic map is priceless

Cartography, the art or science of making maps, is alive and well at the Hawaiian Volcano Observatory (HVO).

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Volcano Watch — What's Shaking Deep Under Hawai‘i?

Volcano Watch — What's Shaking Deep Under Hawai‘i?

Most people know that the Island of Hawai‘i has many earthquakes, including several every year that are strong enough to be felt. They are caused by...

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Photo and Video Chronology - Kīlauea - June 11, 2013

Photo and Video Chronology - Kīlauea - June 11, 2013

Lava flows near Pu‘u ‘Ō‘ō and on coastal plain; ocean entry continues.

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Volcano Watch — Pu‘u ‘Ō‘ō hits middle age—and it shows

Volcano Watch — Pu‘u ‘Ō‘ō hits middle age—and it shows

Kīlauea's East Rift Zone eruption surpassed 30 years of activity in January 2013. But this month marks the 30th anniversary of Pu‘u ‘Ō‘ō, which became...

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USGS HVO Press Release — Magnitude 5.3 Earthquake southeast of the Island of Hawai‘i

USGS HVO Press Release — Magnitude 5.3 Earthquake southeast of the Island of Hawai‘i

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) recorded a magnitude 5.3 earthquakelocated southeast of the Island of Hawai‘i on...

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Volcano Watch — HVO looks to European colleagues for new strategies to track and model lava-flow hazards

Volcano Watch — HVO looks to European colleagues for new strategies to track and model lava-flow hazards

On May 28-30, 2013, two Hawaiian Volcano Observatory (HVO) scientists participated in a workshop on "Satellite-Data-Driven Detection, Tracking and...

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Photo and Video Chronology - Kīlauea - May 24, 2013

Photo and Video Chronology - Kīlauea - May 24, 2013

Flows heading north of Pu‘u ‘Ō‘ō, continued activity in Pu‘u ‘Ō‘ō crater and on Peace Day flow.

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Volcano Watch — New studies help refine Kīlauea gas emission rates

Volcano Watch — New studies help refine Kīlauea gas emission rates

There are times when the USGS motto, "Science for a Changing World," seems to be specifically crafted to describe studies at Hawaiian volcanoes.

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Volcano Watch — Risky actions at Kīlauea's ocean entry are cause for concern

Volcano Watch — Risky actions at Kīlauea's ocean entry are cause for concern

Most of us feel fortunate if we never go near a dangerous battlefield. Yet, dozens, if not hundreds, of people are knowingly—or unwittingly—doing just...

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Volcano Watch — New scientific results mark 5th anniversary of eruption of Chaitén Volcano, Chile

Volcano Watch — New scientific results mark 5th anniversary of eruption of Chaitén Volcano, Chile

Some volcanic eruptions have a much higher overall impact on society than others.

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