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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 and Video Chronology — Webcam upgrades on the Southwest Rift Zone of Mauna Loa

Photo and Video Chronology — Webcam upgrades on the Southwest Rift Zone of Mauna Loa

Volcano Watch — Introducing HVO's new online eruption map

Volcano Watch — Introducing HVO's new online eruption map

Photo and Video Chronology — Drying out at Kīlauea summit and new USGS Data Release

Photo and Video Chronology — Drying out at Kīlauea summit and new USGS Data Release

Multimedia

Color photograph of volcanic cone
April 24, 2024 — Webcam upgrades on Mauna Loa's Southwest Rift zone
April 24, 2024 — Webcam upgrades on Mauna Loa's Southwest Rift zone
Color photograph of field engineer installing camera
April 24, 2024 — Webcam upgrades on Mauna Loa's Southwest Rift zone
April 24, 2024 — Webcam upgrades on Mauna Loa's Southwest Rift zone
Color photograph of field engineer installing webcam
April 24, 2024 — Webcam upgrades on Mauna Loa's Southwest Rift zone
April 24, 2024 — Webcam upgrades on Mauna Loa's Southwest Rift zone
Color photograph of caldera with white text Kīlauea Collapse and Refilling – Changes Since 2018
Kīlauea Collapse and Refilling – Changes Since 2018
Color photograph of webcam at summit of volcano
April 18, 2024 — Drying out at Kīlauea summit
April 18, 2024 — Drying out at Kīlauea summit
Color photograph of scientist checking webcam at summit of volcano
April 18, 2024 — Drying out at Kīlauea summit
April 18, 2024 — Drying out at Kīlauea summit
Color photograph of crater at summit of volcano
April 18, 2024 — Drying out at Kīlauea summit
April 18, 2024 — Drying out at Kīlauea summit
Color photograph of caldera with white text
Caldera collapse and refilling at Kīlauea—a summary of changes since 2018
Caldera collapse and refilling at Kīlauea—a summary of changes since 2018
Color map of seismic project deployments
Distribution of HVO permanent and survey seismic stations
Distribution of HVO permanent and survey seismic stations