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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

Photo & Video Chronology — Fieldwork in American Samoa

Photo & Video Chronology — Fieldwork in American Samoa

Volcano Minute — Explore Maunaiki: a shield built on Kīlauea from 1919-1920

Volcano Minute — Explore Maunaiki: a shield built on Kīlauea from 1919-1920

Volcano Watch — Remembering the 1919–1920 Maunaiki eruption of Kīlauea

Volcano Watch — Remembering the 1919–1920 Maunaiki eruption of Kīlauea

Multimedia

Color photograph showing a volcanic vent degassing
September 11, 2026 — V1cam shows degassing north vent, Kīlauea summit
September 11, 2026 — V1cam shows degassing north vent, Kīlauea summit
Color photograph of dome lava fountain erupting from a volcanic vent
September 11, 2026 — V1cam captures dome fountain erupting within north vent, Kīlauea summit
September 11, 2026 — V1cam captures dome fountain erupting within north vent, Kīlauea summit
Color logo for weekly audio update on volcanic activity in Hawaii
Volcano Minute — Maunaiki: a shield built on Kīlauea from 1919-1920
Volcano Minute — Maunaiki: a shield built on Kīlauea from 1919-1920
Color photograph of cooled lava channel that has tubed over with a spot of glow
September 10, 2026 — Kīlauea summit eruption monitoring overfligh
September 10, 2026 — Kīlauea summit eruption monitoring overfligh
Color photograph of scientist on floor of crater with steaming volcanic vents in the background
September 10, 2026 — Sampling overflows from the north vent at the summit of Kīlauea
September 10, 2026 — Sampling overflows from the north vent at the summit of Kīlauea
Color photograph of island with part of airplane visible in top of photo
September 9, 2026 — Aerial view of Aunu‘u Island, American Samoa
September 9, 2026 — Aerial view of Aunu‘u Island, American Samoa
Color photograph of island in ocean
September 9, 2026 — Aerial view of Ofu-Olosega, American Samoa
September 9, 2026 — Aerial view of Ofu-Olosega, American Samoa
Color photograph of scientists working on monitoring equipment
September 9, 2026 — Tutuila seismic station maintenance
September 9, 2026 — Tutuila seismic station maintenance
Color photograph of vegetated shoreline and ocean
September 9, 2026 — Aerial view of the coast of eastern Ta‘ū Island, American Samoa
September 9, 2026 — Aerial view of the coast of eastern Ta‘ū Island, American Samoa
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