Paleo-tsunami history along the northern Japan Trench: evidence from Noda Village, northern Sanriku coast, Japan

Progress in Earth and Planetary Science

Table 2 Radiocarbon dating results

Sample number	Core	Depth (cm)	Material	Conventional radiocarbon age (yrBP)	Calibrated age (2σ) cal BP	δ¹³C (‰)
1	NM2	30–32	Organic sediment	1910 ± 30	1920–1815	− 27.2
2	NM8	25–27	Organic sediment	2100 ± 30	2150–1995	− 27.0
3	NM-D	35–37	Organic sediment	1740 ± 30	1715–1565	− 27.6
4	NM12	30–32	Organic sediment	2030 ± 30	2055–1900	− 24.4
5	NM-F	17–19	Organic sediment	1910 ± 30	1920–1815	− 26.9
6	NM13	48–50	Organic sediment	2610 ± 30	2765–2730	− 24.1
7	NM-H	21–23	Organic sediment	1940 ± 30	1945–1825	− 27.6
8	NM15	48–50	Organic sediment	2170 ± 30	2305–2070	− 27.6
9	NM-I	41–43	Organic sediment	2000 ± 30	2000–1885	− 27.3
10	NM16	42–44	Organic sediment	2070 ± 30	2120–1950	− 26.8
11	NM17	50–52	Organic sediment	2000 ± 30	2000–1885	− 26.8
12	NM-K	18–20	Organic sediment	1300 ± 30	1290–1180	− 27.4
13	NM-K	30–32	Organic sediment	2050 ± 30	2115–1930	− 26.6
14	NM-K	34–36	Organic sediment	2100 ± 30	2150–1995	− 26.5
15	NM-K	40–42	Organic sediment	2170 ± 30	2305–2070	− 26.2
16	NM-K	44–45	Organic sediment	2190 ± 30	2310–2120	− 24.3
17	NM-K	51–53	Organic sediment	2480 ± 30	2720–2385	− 25.2
18	NM-K	54–55	Organic sediment	2570 ± 30	2750–2710	− 26.6
19	NM18	25–27	Organic sediment	2150 ± 30	2300–2055	− 26.9
20	NM19	41–43	Organic sediment	2160 ± 30	2305–2065	− 24.7

All data were obtained by accelerator mass spectroscopy (AMS). Sample numbers correspond to those in Figs. 4 and 5