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Hawaiian Volcano Observatory

Find U.S. Volcano

HVO monitors earthquakes and the active volcanoes in Hawaii, assesses their hazards, issues warnings, and advances scientific understanding to reduce the impacts of volcanic eruptions. Communicating the results of our work to the public, emergency managers, and the scientific community is an important aspect of the HVO mission. 

Active Volcanoes in Hawaii

Very High Threat Potential
Kīlauea
Mauna Loa
High Threat Potential
Hualālai
Moderate Threat Potential
Haleakalā
Mauna Kea
Not Ranked
Kama‘ehuakanaloa (Lō‘ihi Seamount)
View the threat rankings of US Volcanoes.

News

Volcano Watch — Webcam upgrades keep a sharp eye on Hawaiian volcanoes

Volcano Watch — Webcam upgrades keep a sharp eye on Hawaiian volcanoes

New USGS Data Release — Mauna Loa 2022 eruption geospatial data

New USGS Data Release — Mauna Loa 2022 eruption geospatial data

Volcano Watch — Introducing the Island of Hawaiʻi Interagency Operations Plan for Volcanic Eruptions

Volcano Watch — Introducing the Island of Hawaiʻi Interagency Operations Plan for Volcanic Eruptions

Multimedia

Color map showing deformation and earthquakes on volcano
August 22, 2024—InSAR image of ground deformation and map of seismicity for Kīlauea upper East Rift Zone intrusion
August 22, 2024—InSAR image of ground deformation and map of seismicity for Kīlauea upper East Rift Zone intrusion
Color photograph of scientist measuring crack in road
August 22, 2024 — Measuring cracks on Chain of Craters Road, Kīlauea
August 22, 2024 — Measuring cracks on Chain of Craters Road, Kīlauea
Color photograph of scientist measuring cracks in road
August 22, 2024 — Measuring cracks on Chain of Craters Road, Kīlauea
August 22, 2024 — Measuring cracks on Chain of Craters Road, Kīlauea
Color photograph of scientist photographing summit caldera of volcano
August 20, 2024 — Routine field visit to Kīlauea summit
August 20, 2024 — Routine field visit to Kīlauea summit
Color photograph of scientists checking volcano monitoring equipment
August 20, 2024 — Routine field visit to Kīlauea summit
August 20, 2024 — Routine field visit to Kīlauea summit
Color map showing deformation on volcano
August 19, 2024—InSAR image of Kīlauea ground deformation
August 19, 2024—InSAR image of Kīlauea ground deformation
Color map showing past lava flows from volcanic rift zone
Kīlauea middle East Rift Zone reference map
Kīlauea middle East Rift Zone reference map
Color map showing ground deformation on volcano
August 7, 2024—InSAR image of Kīlauea ground deformation
August 7, 2024—InSAR image of Kīlauea ground deformation
Photo of volcanic cone
August 2, 2024—Sulfur Cone gas monitoring maintenance
August 2, 2024—Sulfur Cone gas monitoring maintenance
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