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[MIS25-P07] Nankai Earthquake events recorded in lacustrine sediment along the eastern coast of the Kii Peninsula, southwest Japan.
Keywords:Nankai Earthquakes, tsunami sediment
As a result, Ashihama-ike records two major events, 2000yBP to 2300yBP and 1000yBP to 1100yBP through 4500 years interval. The other Zasa-ike has six events are detected, which are 7000yBP, 6500yBP, 3500yBP, 2000-2300yBP, 1300yBP, and 1100yBP through the interval of 7500 years. The oldest event in these cores is conglomeratic coarse sediment covered by K-Ah tephra obtained from the lowermost part of cores. Both two events, 2000yBP to 2300yBP and 1000yBP to 1100yBP can be correlated among the ponds Ashihama-ike and Zasa-ike which has two kilometers in distance each other.