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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 - Recent ground control survey helps finalize USGS lava thickness map

Volcano Watch - Recent ground control survey helps finalize USGS lava thickness map

In February 2019, the USGS Hawaiian Volcano Observatory (HVO) released a preliminary map of lava flow thicknesses for Kīlauea Volcano's 2018 lower...

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Updates on Kīlauea, Mauna Loa, and HVO's future

Updates on Kīlauea, Mauna Loa, and HVO's future

HVO Scientist-in-Charge Tina Neal talked about the status of Kīlauea and Mauna Loa volcanoes.

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Geologic map of the central-southeast flank of Mauna Loa volcano, Island of Hawaiʻi, Hawaiʻi

Geologic map of the central-southeast flank of Mauna Loa volcano, Island of Hawaiʻi, Hawaiʻi

Geologic map of the central-southeast flank of Mauna Loa volcano, Island of Hawaiʻi, Hawaiʻi: USGS Scientific Investigations Map 2932–B 

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Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi

Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi

Digital database of the geologic map of the middle east rift geothermal subzone, Kīlauea Volcano, Hawaiʻi: USGS Data Series 1111 

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Photo and Video Chronology - Kīlauea - April 8, 2019

Photo and Video Chronology - Kīlauea - April 8, 2019

Routine overflight of Kīlauea summit

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Photo and Video Chronology - Kīlauea - April 7, 2019

Photo and Video Chronology - Kīlauea - April 7, 2019

Volcano Watch: Probing volcanic air pollution

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Volcano Watch - Eruption pause provides an opportunity to probe volcanic pollution

Volcano Watch - Eruption pause provides an opportunity to probe volcanic pollution

The end of Kīlauea's 2018 eruption this past September was accompanied by an enormous decrease in the amount of sulfur dioxide gas (SO2) emitted from...

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Photo and Video Chronology - Kīlauea - April 2, 2019

Photo and Video Chronology - Kīlauea - April 2, 2019

Scientists watch for changes on and within Kīlauea

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Photo and Video Chronology - Kīlauea - March 31, 2019

Photo and Video Chronology - Kīlauea - March 31, 2019

Volcano Watch: "New outcrops make good geology"

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Photo and Video Chronology - Kīlauea - March 29, 2019

Photo and Video Chronology - Kīlauea - March 29, 2019

LERZ lava flow near Isaac Hale Beach Park

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Volcano Watch - New outcrops make good geology

Volcano Watch - New outcrops make good geology

A good field geologist is an opportunist. Never content with what outcrops are available, she jumps at the chance to see another one, hoping that it...

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Photo and Video Chronology - Mauna Loa - March 27, 2019

Photo and Video Chronology - Mauna Loa - March 27, 2019

GPS station on Mauna Loa.

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