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Yellowstone’s Spectacular Spring: The Story of Grand Prismatic and the Little Dipper

Yellowstone’s Spectacular Spring: The Story of Grand Prismatic and the Little Dipper

Grand Prismatic Spring is one of the most visited sites in Yellowstone National Park.  The feature has amazing story to tell about extreme lifeforms...

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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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Living with active volcanoes in the back yard of the Naples metropolitan area in Italy

Living with active volcanoes in the back yard of the Naples metropolitan area in Italy

Italy is home to numerous volcanoes and a long history of eruptions that are recorded both in the geologic record and by human observers. Some of...

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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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Ferdinand Hayden and the Founding of Yellowstone National Park

Ferdinand Hayden and the Founding of Yellowstone National Park

Geologist Ferdinand Hayden directed the first scientific exploration of Yellowstone in 1871, leading directly to the founding of the world’s first...

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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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Lotta lava! New insights into the timing of Yellowstone’s most recent rhyolite eruptions

Lotta lava! New insights into the timing of Yellowstone’s most recent rhyolite eruptions

New age data for rhyolite lava flows erupted in Yellowstone caldera suggest that the eruptions occurred in tight clusters. These results change the...

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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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A deformation update for Yellowstone caldera—October 2023 edition

A deformation update for Yellowstone caldera—October 2023 edition

Since 2015, Yellowstone caldera has been subsiding at a rate of about 2–3 cm (roughly 1 in) per year. But the deformation changes seasonally due to...

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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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Indigenous people were never “afraid” of Yellowstone

Indigenous people were never “afraid” of Yellowstone

A long-told myth about Yellowstone is that indigenous people were “afraid” of the area owing to the geysers and thermal activity. But archeological...

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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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