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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 — June 16, 2025 — Mauna Loa GPS Campaign and Kīlauea's Growing Tephra Deposit

Volcano Watch — Six Months of Halemaʻumaʻu Lava Fountains

Photo & Video Chronology — June 11, 2025 — Kīlauea Episode 25

Multimedia

Color photograph of rock covered ground surface
June 16, 2025 — View of tephra deposit across Kīlauea's upper Southwest Rift Zone
June 16, 2025 — View of tephra deposit across Kīlauea's upper Southwest Rift Zone
Color photograph of hills covered with small volcanic rocks
June 16, 2025 — View of Kīlauea summit tephra deposit after episode 25
June 16, 2025 — View of Kīlauea summit tephra deposit after episode 25
Color photograph of rock stuck in melted edge of plastic bucket
June 16, 2025 — Tephra collection bucket damaged during episode 25 of Kīlauea's ongoing eruptionJune
June 16, 2025 — Tephra collection bucket damaged during episode 25 of Kīlauea's ongoing eruptionJune
Color map of eruption area
June 13, 2025—Kīlauea summit eruption reference map
June 13, 2025—Kīlauea summit eruption reference map
Comparison of two views six months apart showing changes to the landscape
Changes to Kīlauea summit landscape over the past six months
Changes to Kīlauea summit landscape over the past six months
Two color photographs comparing views months apart
Aerial images comparing the tephra deposit southwest of Halemaʻumaʻu
Aerial images comparing the tephra deposit southwest of Halemaʻumaʻu
Color photograph of tripod on lava flow with helicopter in the background
2025 Annual Campaign GPS measurements in progress
2025 Annual Campaign GPS measurements in progress
Color photograph of volcano monitoring station with cabin in background
2025 Annual Campaign GPS measurements in progress
2025 Annual Campaign GPS measurements in progress
Color photograph of tripod on lava flow with mountain in the background
2025 Annual Campaign GPS measurements in progress
2025 Annual Campaign GPS measurements in progress
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