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Table 1 Results of 14C dating

From: Examination of an active submarine fault off the southeast Izu Peninsula, central Japan, using field evidence for coseismic uplift and a characteristic earthquake model

Sample no.

Site

Altitude (m above msl)

Materials

δ 13C (‰)

Conventional 14C age (year BP)

Calibrated age (2σ) (calendar year) (95.4 %)

Calibrated age (2σ) (calendar year BP) (95.4 %)

Lab number (Beta)

1

Kujyuhama

1.5

Fistulobalanus albicostatus

+1.3

1250 ± 30

AD 1135–1340

815–610

399105

2

Tarai Cape

1.9

Fistulobalanus albicostatus

+1.6

1500 ± 30

AD 880–1165

1070–785

399108