News

The summit eruption of Kīlauea continues, with 36 episodes of lava fountaining since the eruption began on December 23, 2024. Let’s catch up on the...

On September 25, USGS Hawaiian Volcano Observatory geologists surveyed the elevation along a transect across the new tephra cone formed by the recent...

Episode 33 of the ongoing Halemaʻumaʻu eruption started around 3:11 a.m. HST on September 19, 2025 and ended at 12:08 pm HST September 19. On...

The USGS Hawaiian Volcano Observatory (HVO) monitors volcanic activity across the Hawaiian Islands and American Samoa, helping to ensure public safety...

Episode 33 of the ongoing Halemaʻumaʻu eruption started around 3:11 a.m. HST on September 19, 2025.  Lava fountain heights reached 700-800 feet (210...

HVO scientists traveled to American Samoa for critical network maintenance, meetings with partners, and community outreach from August 28-September 11...

American Samoa is a United States territory which comprises the easternmost islands of a volcanic island chain formed by the Samoan hotspot in the...

Gas pistoning continued in the north vent and intermittently in the south vent. Small north vent overflows occurred at 8:38 AM and 8:59 AM HST during...

Born and raised in Hilo, I grew up hiking in Hawaiʻi Volcanoes National Park, fishing in Ka'ū, and stargazing on Mauna Kea. I knew then that the Big...

USGS Hawaiian Volcano Observatory geologists visited the caldera rim at Kīlauea summit to assess the aftermath of episode 32 lava fountaining.