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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 — May 11, 2025 — Kīlauea summit eruption episode 21

Photo & Video Chronology — May 11, 2025 — Kīlauea summit eruption episode 21

Volcano Watch — Twenty episodes and counting: lava fountains continue in Halemaʻumaʻu

Volcano Watch — Twenty episodes and counting: lava fountains continue in Halemaʻumaʻu

Photo & Video Chronology — May 7, 2025 — Kīlauea summit views of the pause after episode 20

Photo & Video Chronology — May 7, 2025 — Kīlauea summit views of the pause after episode 20

Multimedia

Photograph of a lava sample
Photograph of a polished piece of lava
Photograph of a polished piece of lava
Color photograph of volcanic eruption and volcanic plume
May 11, 2025 — Kīlauea episode 21 lava fountaining
May 11, 2025 — Kīlauea episode 21 lava fountaining
Color photograph of visitor overlook and eruption
May 11, 2025 — Kīlauea summit eruption episode 21
May 11, 2025 — Kīlauea summit eruption episode 21
Color photograph of eruption framed by tree
May 11, 2025 — Kīlauea episode 21
May 11, 2025 — Kīlauea episode 21
Color photograph of eruption and plume
May 11, 2025 — Episode 21 north vent lava fountain and plume at Kīlauea volcano
May 11, 2025 — Episode 21 north vent lava fountain and plume at Kīlauea volcano
Color photograph of eruption with lava fountains and flows
May 11, 2025 — Episode 21 lava fountaining at Kīlauea summit
May 11, 2025 — Episode 21 lava fountaining at Kīlauea summit
Color photograph of erupting lava fountain
May 11, 2025 — North vent lava fountaining at Kīlauea volcano
May 11, 2025 — North vent lava fountaining at Kīlauea volcano
Color photograph of hāpuʻu fern plant in volcanic tephra
May 11, 2025 — Hāpuʻu fern at Kīlauea volcano
May 11, 2025 — Hāpuʻu fern at Kīlauea volcano
Color photograph of scientist in front of erupting lava fountain
May 11, 2025 — Scientist watches episode 20 at Kīlauea volcano
May 11, 2025 — Scientist watches episode 20 at Kīlauea volcano
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