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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 — Fostering Prepared Youths on the Natural Hazards of Backyard Volcanoes

Volcano Watch — Fostering Prepared Youths on the Natural Hazards of Backyard Volcanoes

During volcanic crises, the USGS Hawaiian Volcano Observatory (HVO) plays a pivotal role, sharing information on activity and associated hazards with...

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Volcano Watch — What’s shaking beneath Mauna Loa?

Volcano Watch — What’s shaking beneath Mauna Loa?

It’s hard to believe that nearly one year has passed since Mauna Loa erupted. Mauna Loa has been mostly quiet since the end of the 2022 eruption, but...

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Photo and Video Chronology – Kīlauea GPS campaign and Mauna Loa summit webcams

Photo and Video Chronology – Kīlauea GPS campaign and Mauna Loa summit webcams

Hawaiian Volcano Observatory (HVO) geophysicists completed the annual GPS survey of Kīlauea in October 2023. On November 8, 2023, HVO staff fixed the...

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Volcano Watch — Not just polka dots: the hidden dance of processing GPS data

Volcano Watch — Not just polka dots: the hidden dance of processing GPS data

For over thirty years, high-precision GPS (Global Positioning System) measurements have been a key tool used by the USGS Hawaiian Volcano Observatory...

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Volcano Watch — Unrest Continues at Kīlauea Summit

Volcano Watch — Unrest Continues at Kīlauea Summit

The most recent eruption at Kīlauea’s summit began on Sunday, September 10, 2023. Following weeks of heightened unrest, fissures opened on the Halema...

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Temporary webcam outages on Wednesday and a new HVO webcam

Temporary webcam outages on Wednesday and a new HVO webcam

The USGS Hawaiian Volcano Observatory announces temporary webcam image outages on Wednesday and a new webcam that provides views of Kīlauea's upper...

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Volcano Watch — Aloha ʻOe to a Remarkable and Beloved Volcanologist, Dr. Jim Kauahikaua

Volcano Watch — Aloha ʻOe to a Remarkable and Beloved Volcanologist, Dr. Jim Kauahikaua

Distinguished volcanologist Dr. James P. “Jim” Kauahikaua, Ph.D., passed away in the early morning hours of Sunday, October 8, 2023. James Puupai...

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Volcano Watch — The Great Hawaiʻi ShakeOut and the Earthquake Energy Budget

Volcano Watch — The Great Hawaiʻi ShakeOut and the Earthquake Energy Budget

The Great Hawaii ShakeOut is a yearly event for kamaʻāina and visitors to practice and prepare for when a large damaging earthquake hits the Hawaiian...

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Photo and Video Chronology – Kīlauea GPS campaign continues

Photo and Video Chronology – Kīlauea GPS campaign continues

Hawaiian Volcano Observatory geophysicists continue performing the annual GPS survey of Kīlauea. Most Kīlauea and Mauna Loa GPS campaign survey sites...

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A brief history of the Lassen Volcano Observatory (1926-1935)

A brief history of the Lassen Volcano Observatory (1926-1935)

Before there was a California Volcano Observatory or even a Long Valley Observatory, a tiny cabin in northern California housed the first full-time...

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Volcano Watch — Hawaii’s volcanoes are quiet and it’s a bit spooky

Volcano Watch — Hawaii’s volcanoes are quiet and it’s a bit spooky

Here in Hawaii nei, we don’t have the dramatically changing leaf colors and brisk temperatures that mark the arrival of Fall. And as October arrived...

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Volcano Watch — What do we know about the Kulanaokuaiki Tephra of Kīlauea volcano?

Volcano Watch — What do we know about the Kulanaokuaiki Tephra of Kīlauea volcano?

Kīlauea’s recent summit eruptions and lava lakes are exciting for residents, visitors, and scientists. However, Kīlauea has had numerous explosive...

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