Earthquake Research Institute

Office: ERI-1-403
TEL: +81-3-5841-5739
FAX: +81-3-5689-7234

Research Field


Current Research

Resistivity is sensitive especially to existence of interstitial fulids and their connectivity. Electromagnetic observations reveal subsurface conditions such as stress, temperature and fluid motion through piezomagnetic, thermal magnetic and electrokinetic phenomena. Then, while performing and promoting cooperative field experiments for resistivity structure determination and electromagnetic field monitoring, we try to elucidate the physical process which can be extracted from the observations. We are also developing new techniques of field experiments, data processing methods and 3-D resistivity inversion.

Representative Publications

1. M. Uyeshima, H. Utada and Y. Nishida, Network-MT method and its first results in central and eastern Hokkaido, Japan. Geophys. J. Int., 146, 1-19, 2001.
2. M. Uyeshima, EM monitoring of crustal processes including the use of the Network-MT observations, Surv. Geophys., 28, 199-237, 2007.
3. M. Hata, M. Uyeshima, S. Handa, M. Shimoizumi, Y. Tanaka, T. Hashimoto, T. Kagiyama, H. Utada, H. Munekane, M. Ichiki and K. Fuji-ta, 3-D electrical resistivity structure based on geomagnetic transfer functions exploring the featuresof arc magmatism beneath Kyushu, Southwest Japan Arc, J. Geophys. Res., 122, doi:10.1002/2016JB013179, 2017.