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Kīlauea Gravity Survey - April 2022

Detailed Description

Over several weeks in April, USGS Hawaiian Volcano Observatory scientists, along with visiting scientist from other volcano observatories, conducted ​the annual Kīlauea microgravity survey. Gravimeters measure gravitation attraction and they help scientists detect subtle changes in gravity caused by magma movements (learn more in this "Volcano Watch" article:…). USGS scientists also installed new continuous, telemetered gravimeters, on the floor of Kīlauea caldera will allow HVO to monitor changes in gravity real-time. USGS photo by A. Ellis.


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