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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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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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Finding the tempo of shield volcanism in California's Cascades

Finding the tempo of shield volcanism in California's Cascades

Though volcanoes like Mount Shasta or Lassen Peak may dominate their skylines, California also has shield volcanoes, named because their shape is...

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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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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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Volcano Watch — Tsunamis pose a major threat to Hawaii: 24/7 monitoring at PTWC

Volcano Watch — Tsunamis pose a major threat to Hawaii: 24/7 monitoring at PTWC

It’s 3 a.m. and you’re halfway through a 12-6 a.m. graveyard shift at the NOAA Pacific Tsunami Warning Center (PTWC) in Honolulu, Hawaii. 

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When it comes to calderas, how big is big?

When it comes to calderas, how big is big?

Talking about calderas means venturing into superlatives - huge volumes of magma and topographic changes on a regional, even state-sized scale. But...

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Photo and Video Chronology – Views of Kīlauea summit eruption – September 15, 2023

Photo and Video Chronology – Views of Kīlauea summit eruption – September 15, 2023

Several vents continue to erupt on the western side of the downdropped block within Kīlauea's summit caldera and are generating lava flows onto Halema...

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