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Sources/Usage: Public Domain.
Six Eruptions at Two Volcanoes Over the Past Three Years

How the Hawaiian Volcano Observatory monitors some of Earth’s most active volcanoes

by Katie Mulliken, Geologist, Research Corporation of the University of Hawai‘i and USGS Hawaiian Volcano Observatory
  • The Hawaiian Volcano Observatory (HVO) is the oldest volcano observatory in the United States, founded decades before Hawaii became a state!
  • Hawaii’s volcanoes erupt frequently; during the past three years, Kīlauea erupted 5 times and Mauna Loa erupted for the first time in 38 years.
  • Learn how HVO monitors volcanoes, evaluates hazards, and keeps communities that live on the flanks informed.