Numerical estimation of a tsunami source at the flexural area of Kuril and Japan Trenches in the fifteenth to seventeenth century based on paleotsunami deposit distributions in northern Japan

Progress in Earth and Planetary Science

Table 3 Fault parameters of two modified previously proposed models

Model name	Subfault	Slip (m)	Mw*
HEKT model: Hokkaido (2012) model excluding Kuril Trench part
HEKT (base)	5–6	35	8.87
HEKT (base)	11–12	30	8.87
HEKT-1	5–6	25	8.76
HEKT-1	11–12	20	8.76
HEKT-2	5–6	15	8.59
HEKT-2	11–12	10	8.59

Model name	Maximum slip (m)	Average slip (m)	Fault slip factor	Mw*
Hidaka model: Cabinet Office (2020) model excluding Sanriku part
Hidaka (base)	40	17.87	1.0	8.72
Hidaka-1	32	14.29	0.8	8.65
Hidaka-2	24	10.72	0.6	8.57

The HEKT model shows the Hokkaido (2012) model, excluding the Kuril Trench part, and the Hidaka models show the Cabinet Office (2020) model (Sanriku-Hidaka model), excluding the Sanriku part. The fault slip factor is a multiplier for the slip amount in the original Sanriku-Hidaka model
*Rigidity is assumed to be 40 GPa