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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

USGS to Launch Updated Aviation-Focused Volcano Notices in March 2026

USGS to Launch Updated Aviation-Focused Volcano Notices in March 2026

Photo & Video Chronology — February 26, 2026 — Kīlauea summit fieldwork and overflight

Photo & Video Chronology — February 26, 2026 — Kīlauea summit fieldwork and overflight

Volcano Watch — Mauna Loa has lessons to teach during quiet times

Volcano Watch — Mauna Loa has lessons to teach during quiet times

Multimedia

Color map of recent eruption location
March 2, 2026—Kīlauea summit eruption reference map
March 2, 2026—Kīlauea summit eruption reference map
Color photograph of volcanic crater degassing
February 26, 2026 — Overview of Halema‘uma‘u
February 26, 2026 — Overview of Halema‘uma‘u
Color photograph of scientist assembling gear on lava flows located on crater floor
February 26, 2026 — Sampling on Halemaʻumaʻu crater floor, Kīlauea summit
February 26, 2026 — Sampling on Halemaʻumaʻu crater floor, Kīlauea summit
Color photograph of misty volcanic crater Color photograph of misty volcanic crater
February 26, 2026 — Video of Halemaʻumaʻu crater overflight, Kīlauea summit
Color graphic showing three panels, each with multiple monitoring datasets of one volcano
Graphs of ground deformation and earthquake data spanning three eruptions at Mauna Loa.
Graphs of ground deformation and earthquake data spanning three eruptions at Mauna Loa.
Color photograph of misty volcanic crater
February 26, 2026 — Halemaʻumaʻu overflight, Kīlauea summit
February 26, 2026 — Halemaʻumaʻu overflight, Kīlauea summit
Color photograph of field engineer servicing a livestream camera with volcanic vents degassing in the background
February 26, 2026 — Updating the V3 livestreaming camera, Kīlauea summit
February 26, 2026 — Updating the V3 livestreaming camera, Kīlauea summit
Color photograph of volcanic vents degassing
February 26, 2026 — Low pass over eruptive vents at the summit of Kīlauea
February 26, 2026 — Low pass over eruptive vents at the summit of Kīlauea
Color photograph of scientist collecting sample of lava flow
February 26, 2026 — Sampling on Halemaʻumaʻu crater floor, Kīlauea summit
February 26, 2026 — Sampling on Halemaʻumaʻu crater floor, Kīlauea summit
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