Volcano Watch: New instrument with new potential: the Absolute Quantum Gravimeter

  • USGS image by A. Ellis The USGS Hawaiian Volcano Observatory’s Absolute Quantum Gravimeter is undergoing set-up, testing, and calibration before installation at the summit of Kilauea.

As the USGS Hawaiian Volcano Observatory continually improves our monitoring and eruption response capabilities, we acquired a new, state-of-the-art instrument called an Absolute Quantum Gravimeter. 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.