Table 1 Seismic intensity attenuation... | Emerald Publishing

Table 1

Seismic intensity attenuation relation coefficients for each sub-region

Zoning	Eastern strong earthquake-prone area		Moderate-to-strong earthquake-prone area		Xinjiang region		Qinghai-Tibet region
Zoning	Major axis	Minor axis	Major axis	Minor axis	Major axis	Minor axis	Major axis	Minor axis
Coefficient
A	5.7123	3.6588	5.8410	3.9440	5.6018	3.6113	6.4580	3.3682
B	1.3626	1.3626	1.0710	1.0710	1.4347	1.4347	1.2746	1.2746
C	−4.2903	−3.5406	−3.6570	−2.8450	−4.4899	−3.8477	−4.4709	−3.3119
R₀	25	13	15	7	25	13	25	9
Standard deviation σ	0.5826		0.5200		0.5924		0.6636

Zoning	Eastern strong earthquake-prone area		Moderate-to-strong earthquake-prone area		Xinjiang region		Qinghai-Tibet region
Zoning	Major axis	Minor axis	Major axis	Minor axis	Major axis	Minor axis	Major axis	Minor axis
Coefficient
A	5.7123	3.6588	5.8410	3.9440	5.6018	3.6113	6.4580	3.3682
B	1.3626	1.3626	1.0710	1.0710	1.4347	1.4347	1.2746	1.2746
C	−4.2903	−3.5406	−3.6570	−2.8450	−4.4899	−3.8477	−4.4709	−3.3119
R₀	25	13	15	7	25	13	25	9
Standard deviation σ	0.5826		0.5200		0.5924		0.6636

Source(s): Development of ground motion attenuation relations for the new seismic hazard map of China (2013)