Seismic ACROSS as a potential technology for geophysical exploration and monitoring

Kunitomo, Takahiro; Kumazawa, Mineo

We have started the automated routine transmission of the accurately controlled elastic wave signals by the seismic ACROSS transmitter at Tono mine (Toki-shi, Gifu) from Oct. 2002, and continuous observations have been executed for more than three years, in order to establish a routine technology of the next generation for the structural exploration and active monitoring of the Earth's interiors by seismic waves. We report mainly the results obtained by the experiments.