测向 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | |
固原 | NS | 0.029 | 0.031 | 0.031 | 0.033 | 0.028 | 0.040 | 0.026 |
海原 | 0.026 | 0.049 | 0.037 | 0.040 | 0.038 | 0.030 | 0.033 | |
比值(%) | −10.3 | 58.0 | 19.4 | 21.2 | 35.7 | −25.0 | 26.9 | |
固原 | EW | 0.030 | 0.030 | 0.027 | 0.034 | 0.023 | 0.042 | 0.027 |
海原 | 0.044 | 0.043 | 0.048 | 0.044 | 0.038 | 0.059 | 0.044 | |
比值(%) | 46.7 | 43.3 | 77.8 | 29.4 | 65.2 | 40.5 | 63.0 |