针对内蒙古地区地形东西跨度大、台站分布不均匀、监测能力较为薄弱的特点，基于概率的完整性震级（PMC）方法，依托内蒙古重大项目监测台网的数字资料，选取内蒙古重大地震台网及周边邻省共108个地震台站所记录的4 087个地震，开展重大项目监测台网的监测能力评估。评估结果显示，内蒙古西部地区最小完整性震级为ML 1.3，地震监测能力相对较弱；内蒙古中西部地区和东部地区最小完整性震级分别为ML 0.6、ML 0.7，地震监测能力相对较强。
Given the characteristics of Inner Mongolia, with a large east-west geographical span,uneven distribution of stations, and relatively weak monitoring capabilities, an assessment was conducted on the monitoring capacity of the major project observation network in Inner Mongolia. This assessment was based on the probability integrity magnitude (PMC) method. Utilizing the digital data from the Inner Mongolia major project monitoring network, 4 087 earthquakes recorded by a total of 108 seismic stations in Inner Mongolia seismic network and its neighboring provinces were selected for this study. The results show that the minimum complete magnitudes in the western part of Inner Mongolia is ML1.3, indicating a relatively weak earthquake monitoring capability. In contrast, the minimum complete magnitudes in the central-western and eastern regions of Inner Mongolia are ML 0.6 and ML 0.7 respectively, signifying a relatively stronger earthquake monitoring capability.
2023,44（4）: 34-40 收稿日期：2021-10-12
DOI：10.3969/j.issn.1003-3246.2023.04.006
基金项目：中国地震局监测、预报、科研三结合课题（项目编号：3JH-2021011）；内蒙古自治区地震局局长基金（项目编号：2022JC04）
作者简介：赵艳红(1979-),女,高级工程师,主要从事地震监测、数字地震资料应用工作。E-mail:530001094@qq.com
*通讯作者：翟浩(1990-),男,工程师,主要从事地震监测工作。E-mail:496831965@qq.com
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