An Examination of detection possibilities of the EM signals transmitted from the submarine cable to monitor the conductivity in the crust

Nakajima, Takahiro; Kumazawa, Mineo; Nagao, Hiromichi*

We examined the possibility for the application of the submarine cables off the coast of Toyohashi as a transmitting source of EM-ACROSS. We estimated the ACROSS signals reflected from the high conductivity layer 9 km below the seabed. The numerical calculations of the layered medium indicates that the signal from the layer could emerge with a few days observation of the electric field. The observable frequency range estimated by the assumed conductivity model is between 0.01 and 1 Hz.