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Electromagnetic Exploration

Have a look at our studies

MT image 1 We mainly conduct magnetotelluric (MT) electromagnetic surveys in fault zones, mining areas, geothermal fields, and volcanic regions.

MT image 2 After several days of measurement, we again go to the field to pick the equipment up. The observed electromagnetic data are extracted from those and analyzed at our laboratory.
We install several tens of MT sites across a broad survey area, collect and analyze the data, and estimate the three-dimensional resistivity structure.

Examples

  • Toya Caldera:Komori et al. (2024) Three-dimensional resistivity structure in Toya caldera region, Southwest Hokkaido, Japan — Constraints on magmatic and geothermal activities. Geophysics.
  • Meakandake volcano:Inoue et al. (2022) A broadband magnetotelluric survey for Mt. Meakandake volcano with special attention to the unrest during 2016–2017. Earth, Planets and Space.
  • Izu peninsula:Inoue et al. (2025) The resistivity structure of Izu peninsula inferred from broadband magnetotelluric survey. Society of Geomagnetism and Earth, Planetary and Space Sciences. (oral presentation)

(Tomohiro Inoue)