Long-period ground motion simulation using centroid moment tensor inversion solutions based on the regional three-dimensional model in the Kanto region, Japan

Earth, Planets and Space

Table 1 Physical parameters of each layer in JIVSM

	V_P [km/s]	V_S [km/s]	ρ [kg/m³]	μ [GPa]	Q_P	Q_S
Air	0.0	0.0	0.001	0.0	10¹⁰	10¹⁰
Seawater	1.5	0.0	1.04	0.0	10⁶	10⁶
Sedimentary layer 1	1.8	0.5	1.95	0.49	170	100
Sedimentary layer 3	2.3	0.9	2.10	1.70	340	200
Sedimentary layer 4	3.0	1.5	2.25	5.06	510	300
Basement	5.5	3.2	2.65	27.1	680	400
Upper crust	5.8	3.4	2.70	31.2	680	400
Lower crust	6.4	3.8	2.80	40.0	680	400
Upper mantle	7.5	4.5	3.20	64.8	850	500
Philippine Sea plate
Oceanic crust layer 2	5.0	2.9	2.40	20.2	340	200
Oceanic crust layer 3	6.8	4.0	2.90	46.4	510	300
Oceanic Mantle	8.0	4.7	3.20	70.7	850	500
Pacific Plate
Oceanic crust layer 2	5.4	2.8	2.60	20.4	340	200
Oceanic crust layer 3	6.5	3.5	2.80	34.3	510	300
Oceanic Mantle	8.1	4.6	3.40	71.9	850	500

The air and seawater layers were treated as being the same, following Maeda et al. (2017). The P-wave velocity (V_P), S-wave velocity (V_S), density (ρ), rigidity (μ) and inelastic attenuation (Q_P and Q_S) are listed