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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 — How are lava-flow maps made during an eruption?

Volcano Watch — How are lava-flow maps made during an eruption?

During Kīlauea Volcano's recent lower East Rift Zone (LERZ) eruption, lava-flow maps were a staple of the public outreach effort by the USGS Hawaiian...

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Photo and Video Chronology - Kīlauea - October 30, 2018

Photo and Video Chronology - Kīlauea - October 30, 2018

Kīlauea Volcano's summit

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Volcano Watch — Kīlauea 2018 events mark a watershed for volcano science

Volcano Watch — Kīlauea 2018 events mark a watershed for volcano science

The 2018 summit collapse and lower East Rift Zone eruption at Kīlauea Volcano were dramatic and, for many Island of Hawai‘i residents, tragic events...

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Volcanic threat assessment helps prioritize risk reduction efforts at U.S. volcanoes

Volcanic threat assessment helps prioritize risk reduction efforts at U.S. volcanoes

The U.S. Geological Survey assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people...

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Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes

Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes

Since 1980, there have been 120 eruptions and 52 episodes of notable volcanic unrest at 44 U.S. volcanoes.

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Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes.

Volcanic Threat Assessment help prioritize risk reduction efforts at U.S. volcanoes.

The USGS assesses active and potentially active volcanoes in the U.S., focusing on history, hazards and the exposure of people, property and...

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Photo and Video Chronology - Kīlauea - October 21, 2018

Photo and Video Chronology - Kīlauea - October 21, 2018

Great Hawaii ShakeOut

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Volcano Watch — Kīlauea hazard assessments include analyses of salts on volcanic ash

Volcano Watch — Kīlauea hazard assessments include analyses of salts on volcanic ash

Sulfur dioxide (SO2)-rich emissions have long been a feature of Kīlauea Volcano's summit activity. However, vigorous volcanic ash production during...

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Photo and Video Chronology - Kīlauea - October 15, 2018

Photo and Video Chronology - Kīlauea - October 15, 2018

Mauna Loa and Mauna Kea as seen from Kīlauea's lower East Rift Zone

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Volcano Watch — Aftershocks of the 2018 magnitude-6.9 earthquake expected to continue

Volcano Watch — Aftershocks of the 2018 magnitude-6.9 earthquake expected to continue

On May 4, 2018, a powerful magnitude-6.9 earthquake on the south flank of Kīlauea Volcano shook the Island of Hawai‘i. It was the largest quake in...

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New USGS Data Release Product

New USGS Data Release Product

Data Release: Volcanic ash leachate and rainwater chemistry from increased 2018 activity of Kīlauea Volcano, Hawaiʻi

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Volcano Watch — Volcano collapses mark the beginning and end of USGS scientist’s career

Volcano Watch — Volcano collapses mark the beginning and end of USGS scientist’s career

My 37-year stint with the U.S. Geological Survey—16 years at the Cascades Volcano Observatory (CVO) and 21 at the Hawaiian Volcano Observatory (HVO)...

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