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 | ||||
|---|---|---|---|---|---|---|---|---|
| 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 | ||||
|---|---|---|---|---|---|---|---|---|
| Major axis | Minor axis | Major axis | Minor axis | Major axis | Minor axis | Major axis | Minor axis | |
| Coefficient | ||||||||
| 5.7123 | 3.6588 | 5.8410 | 3.9440 | 5.6018 | 3.6113 | 6.4580 | 3.3682 | |
| 1.3626 | 1.3626 | 1.0710 | 1.0710 | 1.4347 | 1.4347 | 1.2746 | 1.2746 | |
| −4.2903 | −3.5406 | −3.6570 | −2.8450 | −4.4899 | −3.8477 | −4.4709 | −3.3119 | |
| 25 | 13 | 15 | 7 | 25 | 13 | 25 | 9 | |
| Standard deviation | 0.5826 | 0.5200 | 0.5924 | 0.6636 | ||||
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