A research team has found evidence of a series of tsunami caused by earthquakes concentrated in the Tokai region inside layers of earth below a lake in Owase, Mie Prefecture, the team said Saturday.
Yoshinobu Tsuji, an assistant professor at the Earthquake Research Institute of the University of Tokyo, said his team discovered evidence that seawater and pieces of wood were carried by tidal waves into Lake Oike on at least nine occasions as far back as 2,500 years ago.
Tsuji and other researchers will make a presentation on the discovery at the 2001 Japan Earth and Planetary Science Joint Meeting, which begins Monday in Tokyo.
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