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Table 1 14C ages of samples from the study area

From: Geologic evidence for coseismic uplift at ~ AD 400 in coastal lowland deposits on the Shimizu Plain, central Japan

Sample no. Site Depth (m) Altitude (m above m.s.l.) Materials δ13C (‰) Conventional 14C age (year BP) Calibrated age (2σ; cal. year BP; 95.4%) Beta ID
1 1 4.05 0.45 Wood − 27.02 2050 ± 30 166 cal BC to 20 cal AD 496227
2 1 4.20 0.30 Wood − 29.13 1650 ± 30 264–532 cal AD 496228
3 1 4.21 0.29 Leaf − 30.08 1600 ± 30 398–539 cal AD 502135
4 1 4.21 0.29 Leaf − 29.89 1740 ± 30 236–386 cal AD 502136
5 1 4.53 − 0.03 Wood − 26.34 2080 ± 30 191–38 cal BC 496229
6 1 6.47 − 1.97 Plant material − 26.21 2380 ± 30 726–392 cal BC 517951
8 2 2.10 1.70 Leaf − 29.52 1670 ± 30 258–428 cal AD 502137
9 2 2.10 1.70 Leaf − 29.46 1740 ± 30 236–386 cal AD 502138
10 2 3.66 0.14 Plant material − 28.80 2120 ± 30 345–50 cal BC 508311
11 2 3.67 0.13 Wood 3430 ± 40 1877–1636 cal BC 503648
12 2 4.64 − 0.84 Plant material − 22.42 3110 ± 30 1437–1288 cal BC 508312
13 2 4.87 − 1.07 Plant material − 24.63 2530 ± 30 797–543 cal BC 508313
14 2 4.98 − 1.18 Plant material − 28.50 3040 ± 30 1397–1216 cal BC 508314
15 2 5.20 − 1.40 Plant material − 27.7 2420 ± 30 748–402 cal BC 517953
16 2 5.34 − 1.54 Plant material − 24.6 2680 ± 30 897–802 cal BC 517954
17 2 5.51 − 1.71 Plant material − 27.1 2940 ± 30 1257–1043 cal BC 517955