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News about Mauna Loa.

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Photo and Video Chronology — Webcam upgrades on the Southwest Rift Zone of Mauna Loa

Photo and Video Chronology — Webcam upgrades on the Southwest Rift Zone of Mauna Loa

On April 24, HVO staff installed a new webcam and upgraded an existing webcam on the Southwest Rift Zone of Mauna Loa. 

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Volcano Watch — Introducing HVO's new online eruption map

Volcano Watch — Introducing HVO's new online eruption map

The production of maps to track the progress of ongoing eruptions has long been part of the USGS Hawaiian Volcano Observatory (HVO) mission to inform...

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Volcano Watch — HVO and Collaborators Continue Seismic Surveys Across the Active Volcanoes of Hawaii

Volcano Watch — HVO and Collaborators Continue Seismic Surveys Across the Active Volcanoes of Hawaii

The Island of Hawai‘i is one of the most seismically active regions in the world. In the last five years, an average of 600-1200 earthquakes per week...

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Volcano Watch — Using acoustic signals to identify the start of 2022 Mauna Loa eruption

Volcano Watch — Using acoustic signals to identify the start of 2022 Mauna Loa eruption

The 2022 eruption of Mauna Loa occurred late in the evening of November 27th. The eruption was preceded by intense earthquake activity about half an...

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New HVO webcam provides views of the Southwest Rift Zone of Mauna Loa

New HVO webcam provides views of the Southwest Rift Zone of Mauna Loa

The USGS Hawaiian Volcano Observatory announces a new webcam that provides views of the Southwest Rift Zone of Mauna Loa

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Recently Published USGS Data Releases

Recently Published USGS Data Releases

Several newly published USGS data releases provide data on timelapse camera and webcam images of the fissure 8 during the 2018 lower East Rift Zone...

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Volcano Watch — Mauna Loa 2022: a retrospective on the early hours of the eruption

Volcano Watch — Mauna Loa 2022: a retrospective on the early hours of the eruption

In the late hours of November 27, 2022, Mauna Loa began erupting. Lava was visible on the west side of the Island of Hawaiʻi, from Kailua-Kona to...

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New USGS Data Releases Available

New USGS Data Releases Available

Several newly published USGS data releases provide data on Kīlauea thermal maps during the 2018 lower East Rift Zone eruption, tiltmeter data from...

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Updates to the HVO website

Updates to the HVO website

Updates to HVO website organization have moved Kīlauea and Mauna Loa monitoring pages to "Science" content.

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New map of continued unrest at Kīlauea volcano

New map of continued unrest at Kīlauea volcano

Unrest continues at Kīlauea volcano and a new map summarizes activity over the past month.

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Reflecting on Mauna Loa's Reawakening

Reflecting on Mauna Loa's Reawakening

For months, USGS monitoring had shown that Mauna Loa was inching close to an eruption. Just before midnight on Sunday, November 27, 2022, the wait was...

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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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