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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 — Geodesy through time: a history of measuring the shape of Hawaiian volcanoes

Volcano Watch — Geodesy through time: a history of measuring the shape of Hawaiian volcanoes

Geodesy is the science of accurately measuring and understanding the Earth's geometric shape, gravity field, and orientation in space—and how these...

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Volcano Watch — Doppler radar in Ka‘ū: more than a weather radar

Volcano Watch — Doppler radar in Ka‘ū: more than a weather radar

Driving Highway 11 from Volcano to Wai‘ōhinu on sunny, vog-free days, it's hard to miss that bright white soccer ball on the slope of Mauna Loa above...

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Volcano Watch — Water was in Kīlauea caldera before the 2018 summit collapse

Volcano Watch — Water was in Kīlauea caldera before the 2018 summit collapse

On July 4, 2018, an observer at the Volcano House Hotel was watching the evolving collapse of Halema‘uma‘u Crater, 4 km (2.5 miles) away. Suddenly he...

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Volcano Watch — How hot is Kīlauea's summit water lake?

Volcano Watch — How hot is Kīlauea's summit water lake?

The recent first anniversary of the appearance of water at Kīlauea's summit is a reminder of how much has changed since the end of the 2018 eruption...

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Volcano Watch — Kīlauea Volcano's summit water lake is one-year old

Volcano Watch — Kīlauea Volcano's summit water lake is one-year old

On July 25, 2019, ponded water was first observed within Halema‘uma‘u at the summit of Kīlauea Volcano. Over the past twelve months, the USGS Hawaiian...

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Volcano Watch — HVO looking to install seismographs in your community

Volcano Watch — HVO looking to install seismographs in your community

The Youth and Education in Science (YES) program at USGS in collaboration with the Hawaiian Volcano Observatory (HVO) is launching a community...

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Volcano Watch — Deep repeating earthquakes beneath Mauna Kea

Volcano Watch — Deep repeating earthquakes beneath Mauna Kea

Mauna Kea volcano hasn't erupted in over 4,500 years, but that doesn't mean it's quiet. In fact, for decades it has been hiding one of the most unique...

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Volcano Watch — A Legendary part of the Wailuku River is again revealed

Volcano Watch — A Legendary part of the Wailuku River is again revealed

The "Hawaiian Sup‘pa Man," demi-god Maui, had several adventures on the Wailuku River in the legendary past. He rescued his mother, Hina, who lived in...

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Volcano Watch — Tech talk part 2: Schematic diagram of one HVO technician's position

Volcano Watch — Tech talk part 2: Schematic diagram of one HVO technician's position

Last week's "Volcano Watch" article introduced the role of "technician" at the USGS Hawaiian Volcano Observatory (HVO). This week, we present the...

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Volcano Watch — Tech talk part 1: Electronic "doctor" tracks health of monitoring stations

Volcano Watch — Tech talk part 1: Electronic "doctor" tracks health of monitoring stations

As part of Volcano Awareness Month earlier this year, "Volcano Watch" featured five articles focused on different roles at the USGS Hawaiian Volcano...

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Volcano Watch — Extraordinary tenure ends for leader of USGS Hawaiian Volcano Observatory

Volcano Watch — Extraordinary tenure ends for leader of USGS Hawaiian Volcano Observatory

The extraordinary leadership of Tina Neal as Scientist-in-Charge (SIC) of the USGS Hawaiian Volcano Observatory (HVO) comes to an end this week, when...

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Volcano Watch — Kīlauea’s 1952 summit eruption ended a long period of inactivity

Volcano Watch — Kīlauea’s 1952 summit eruption ended a long period of inactivity

On June 27, 1952, an eruption started at the summit of Kīlauea Volcano, ending a period of quiescence that had lasted nearly 18 years.

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