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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 — So what on Earth (or at least on Kīlauea) is a “gas piston”?

Volcano Watch — So what on Earth (or at least on Kīlauea) is a “gas piston”?

Photo & Video Chronology — June 29, 2025 — Kīlauea Episode 27

Photo & Video Chronology — June 29, 2025 — Kīlauea Episode 27

Into the Deep: Exploring the Hidden Slopes of Bogoslof Volcano

Into the Deep: Exploring the Hidden Slopes of Bogoslof Volcano

Multimedia

Color photograph of people sitting on the ground with an eruption visible in the background
June 29, 2025 — Episode 27 at the summit of Kīlauea
June 29, 2025 — Episode 27 at the summit of Kīlauea
Color photograph of lava fountains
June 29, 2025 — Episode 27 of the Halema‘uma‘u Kīlauea summit eruption
June 29, 2025 — Episode 27 of the Halema‘uma‘u Kīlauea summit eruption
Color photograph of lava fountain
June 29, 2025 — Kīlauea lava fountain and koaʻe kea
June 29, 2025 — Kīlauea lava fountain and koaʻe kea
Lava fountains in the background with visitors visible in the foreground
June 29, 2025 — Kīlauea summit episode 27
June 29, 2025 — Kīlauea summit episode 27
Strands of volcanic glass on the ground
June 29, 2025 — Pele's Hair at Kīlauea
June 29, 2025 — Pele's Hair at Kīlauea
Color photograph showing plant and lava fountain in the background
June 29, 2025 — Kīlauea episode 27 lava fountain and ʻōhiʻa lehua
June 29, 2025 — Kīlauea episode 27 lava fountain and ʻōhiʻa lehua
Color photograph of a volcanic vent
June 27, 2025 — Lava in the north vent, Kīlauea
June 27, 2025 — Lava in the north vent, Kīlauea
Color photograph of volcanic crater
June 27, 2025 — Aerial overview of Kaluapele
June 27, 2025 — Aerial overview of Kaluapele
Color photograph of volcanic vent degassing
June 27, 2025 — Aerial view of the vent area and tephra blanket at the summit of Kīlauea
June 27, 2025 — Aerial view of the vent area and tephra blanket at the summit of Kīlauea
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