Prompt Detection of Gravity Gradient Transient Induced by Large Earthquakes

  • 1.5 Quantum interdisciplinary sciences(Life science, Mathematics, Particle physics, Space science, Astronomy, Quantum gravity, etc.)
  • 2.1 Quantum bits, memories, devices(Superconducting circuits, Ion trapping, Trapped cold atoms, Photons, Quantum dots, etc.)
  • 2.2 Quantum sensing(Quantum metrology/Sensing/Imaging, Optical lattice clocks)
Masaki Ando
Graduate School of Science
Associate Professor
To investigate the possibility of developing an early alert for large earthquake using a sensitive gravity-gradiometer. To develop a gravity-gradiometer based on a quantum opt-mechanical system by utilizing laser interferometry and a torsion pendulum.
Prototype of Gravity Gradiometer
Ando group, Department of Physics
Calculation of transient gravity gradient
M.Kimura, ERI, Univ. of Tokyo

Related links

Research collaborators

Yuta Michimura (Dept. of Phys., Univ. of Tokyo)
Shingo Watada, Nobuki Kame (ERI, Univ, of Tokyo)

Related publications

M. Kimura, et al.: Earthquake-induced prompt gravity signals identified in dense array data in Japan, Earth Planets Space, 71, 27 (2019).


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