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Table 2 Radiocarbon ages from Mugi Town

From: Geological record of prehistoric tsunamis in Mugi town, facing the Nankai Trough, western Japan

No. Site Elevation (m, T.P.) Conventional age (14C yr BP) Calibrated age2σ range (cal yr BP) Material Lab no. (Beta-)
1 MG01 0.24 to 0.21 1940 ± 30 BP 1970–1820 Needles 465345
2 MG03 0.26 to 0.23 3460 ± 30 BP 3831–3642 Leaf 465341
3 MG03 − 0.03 to − 0.06 3760 ± 30 BP 4237–3994 Needles, Leaves, and Najas spp. & unidentified taxa 483201
4 MG03 − 2.63 to − 2.66 6000 ± 30 BP 6931–6750 Ruppia maritima 465342
5 MG05 1.65 to 1.64 1660 ± 30 BP 1690–1421 Cladium chinense 473445
6 MG05 1.24 to 1.21 2340 ± 30 BP 2457–2316 Seeds 503500
7 MG05 1.15 to 1.14 2740 ± 30 BP 2920–2765 Cladium chinense 473446
8 MG05 0.64 to 0.63 3340 ± 30 BP 3678–3480 Cladium chinense 474818
9 MG05 − 0.15 to − 0.16 3680 ± 30 BP 4139–3914 Leaves 474369
10 MG05 − 0.68 to − 0.69 4030 ± 30 BP 4572–4422 Needles 473447
11 MG05 − 0.72 to − 0.73 4380 ± 30 BP 5040–4863 Najas spp. 474796
12 MG05 − 0.86 to − 0.87 4170 ± 30 BP 4831–4585 Leaves 473449
13 MG05 − 0.92 to − 0.93 4260 ± 30 BP 4870–4711 Leaf 474370
14 MG05 − 1.28 to − 1.29 4750 ± 30 BP 5586–5331 Zannichellia palustris 473450
15 MG05 − 1.79 to − 1.80 4780 ± 30 BP 5590–5468 Ruppia maritima and Zannichellia palustris 473451
16 MG06 0.99 to 0.97 2890 ± 30 BP 3145–2928 Cladium chinense 481643
17 MG06 − 0.83 to − 0.89 4140 ± 30 BP 4824–4571 Moss stems, Najas spp., Zannichellia palustris and un identified taxa 483425
18 MG06 − 1.76 to − 1.79 4470 ± 30 BP 5289–4976 Zannichellia palustris 482828
19 MG06 − 2.88 to − 2.91 5450 ± 30 BP 6301–6205 Najas spp., Zannichellia palustris and unidentified taxa 483202
20 MG08 1.06 to 1.03 2610 ± 30 BP 2776–2721 Cladium chinense 465343
21 MG08 − 0.64 to − 0.67 4020 ± 50 BP 4570–4421 Leaf 465344
22 MG08 − 2.00 to − 2.03 4740 ± 50 BP 5589–5326 Najas spp., Ruppia maritima,Zannichellia palustris and unidentified taxa 483,427
23 MG10 1.48 to 1.46 2280 ± 30 BP 2353–2161 Needles 503498
24 MG10 1.29 to 1.27 2870 ± 30 BP 3077–2881 Cladium chinense 503499
25 MG10 − 0.39 to − 0.42 3570 ± 30 BP 3972–3731 Cladium chinense 483203
26 MG10 − 0.75 to − 0.78 5010 ± 30 BP 5892–5656 Leaves, Najas spp. and unidentified taxa 483426
27 MG10 − 0.66 to − 0.69 5780 ± 30 BP 6657–6500 Zannichellia palustrisRuppia maritima,and unidentified taxa 483204
28 MG13 0.99 to 0.97 2720 ± 30 BP 2868–2761 Cladium chinense 481644
29 MG13 − 2.68 to − 2.71 4890 ± 30 BP 5662–5587 Najas spp., Zannichellia palustris and unidentified taxa 482824
  1. Ages were calibrated with OxCal version 4.3 (Bronk Ramsey 2017) and ranges at two standard deviations were computed with the calibration data of IntCal13 (Reimer et al. 2013)