Recent eruption history inferred from eruption ages of the two latest lava flows using multi-dating at Yokodake Volcano, Japan

Earth, Planets and Space

Table 1 Results of radiocarbon dating

Sample	IAAA ID	Loc.	Material	Chemical pretreatment	¹⁴C age (yr BP)	δ¹³C (‰)	δ¹³C-converted ¹⁴C age (yr BP)	pMC (%)	Calendar ¹⁴C age (cal yr BP) [probability (%)]
18YK1-1	182379	1	Paleosol	HCL	330 ± 20	− 24.13 ± 0.29	350 ± 20	95.77 ± 0.27	1σ	464–428 [27.9] 378–320 [40.3]
18YK1-1	182379	1	Paleosol	HCL	330 ± 20	− 24.13 ± 0.29	350 ± 20	95.77 ± 0.27	2σ	485–420 [39.3] 411–315 [56.1]
18YK2-1	182380	2	Paleosol	HCL	500 ± 20	− 24.35 ± 0.25	510 ± 20	93.79 ± 0.25	1σ	539–520 [68.2]
18YK2-1	182380	2	Paleosol	HCL	500 ± 20	− 24.35 ± 0.25	510 ± 20	93.79 ± 0.25	2σ	550–510 [95.4]

Calibrated ages were calculated using Intcal13 (Reimer et al. 2013). We adopted the 2σ of calendar ¹⁴C age