#U.S. Geological Survey Hawaiian Volcano Observatory
Hawai‘i Volcanoes National Park October flight operations
Volcanoes National Park has scheduled flights for various purposes in October, including, monitoring ʻuaʻu (Hawaiian petrels), conducting site surveys and controlling invasive banana poka.
Hawaiʻi Volcanoes National Park announces September flight operations
Hawai‘i Volcanoes National Park has scheduled multiple flight operations throughout September for various activities, including, ungulate surveys, invasive species control and Hawaiian petrel monitoring.
Volcano Watch: Forgotten Collapse of Halemaʻumaʻu Crater on June 5–7, 1916
A series of collapse events took place from June 5–7, 1916, and observers described it as one of the most spectacular occurrences they had ever witnessed at Kīlauea.
Volcano Watch: New Instrument With New Potential — the Absolute Quantum Gravimeter
As the USGS Hawaiian Volcano Observatory (HVO) continually improves our monitoring and eruption response capabilities, we acquired a new, state-of-the-art instrument called an Absolute Quantum Gravimeter (AQG). HVO scientists are excited about the AQG’s ability to measure very small mass changes beneath the ground surface, which will help detect underground volcanic processes.
HVO Staff Lend Helping Hand to Alaska Colleagues
Volcano observatories across the United States work together to ensure efficient and thorough monitoring of the nation’s active volcanoes.
Volcano Scientists Gather for a Volatile Meeting
With more collaborative monitoring, we can collect more and higher quality data, and better understand how volcanoes work, including ours here in Hawai‘i.
What Does Water in Halema‘uma‘u Mean?
The slowly deepening pond of water on the floor of Halema‘uma‘u, the first in recorded history, has captured the interest of media and the public.
Water or No Water: That is (or Was) the Question
Everyone agreed that the photos could well show water, but could the green patch be something else?
Mauna Loa’s 1975 Eruption in Terms of Today’s Volcano Alert Level
Shortly before midnight on July 5, 1975, Mauna Loa Volcano awakened with a shudder.
Getting in The (Rift) Zone: Why & How They Erupt
Rift zones are areas of weakness in the volcano which form early in its lifetime, likely due to spreading of the volcano as it settles.
Reading the Rainbow: How to Interpret an Interferogram
Interferometric Synthetic Aperture Radar calculates the difference between two radar images acquired by an orbiting satellite taken at different times.
