CAJ | 학술논문

选取山西及邻区不同区域的33个地震事件，通过分析“定位子台网”分布对地震定位精度的影响，研究“定位子台网”的选取。分区域分别探讨两种台站分布情况下的定位偏差、水平误差、拟合残差随空隙角、近台距离、远台距离的变化，以及定位偏差与拟合残差的关系。结果显示，速报时选取9～12个台站，且台站分布相对合理的“定位子台网”参加定位结果比较好，使用水平误差估计定位结果的效果较理想。
선취산서급린구불동구역적33개지진사건，통과분석“정위자태망”분포대지진정위정도적영향，연구“정위자태망”적선취。분구역분별탐토량충태참분포정황하적정위편차、수평오차、의합잔차수공극각、근태거리、원태거리적변화，이급정위편차여의합잔차적관계。결과현시，속보시선취9～12개태참，차태참분포상대합리적“정위자태망”삼가정위결과비교호，사용수평오차고계정위결과적효과교이상。
Selecting 33 earthquakes occurred in different areas of Shanxi Province and its adjacent regions ,how to select the best sub-network for focus locating is studied based on analyzing the influence of locating network distribution on the accuracy of earthquake location .The locating deviation ,horizontal error ,fitting residual with clearance angle ,variation with distances of near station and far station ,and relation of locating deviation with fitting residual of two types of station distribution were discussed in different re-gions ,respectively .The result indicates that it is suitable to select a sub-network including 9 to 12 rational distributed station for fo-cus locating in rapid report .It is relatively suitable to evaluate the quality of the locating result with horizontal error .