Numerical studies of geomagnetically induced electric field on seafloor and near coastal zones incorporated with heterogeneous conductivity distributions

Earth, Planets and Space

Table 1 Two contrastive models of sub-seafloor 1-D conductivity structures. The seawater conductivity is assumed as 4 S/m

	Pacific plate (PAC) model	Philippine Sea plate (PHS) model
Crust	0.01 S/m	0.01 S/m
Crust	Depth 0–10 km bsf.	Depth 0–10 km bsf.
Upper most mantle	0.001 S/m	0.001 S/m
Upper most mantle	Depth 10–150 km bsf.	Depth 10-40km bsf.
Upper mantle	0.033 S/m	0.033 S/m
Upper mantle	Depth >150 km bsf.	Depth >40 km bsf.