Abstract It is difficult to identify and assess the recently active faults, representing a risk factor for key human activities, in the areas of stable crust with slow tectonic deformation and reduced seismicity. We face the problem in the eastern Bohemian Massif (Central European Variscides) at a contact with the Eastern Alpine – Western Carpathian orogenic belt through building its integrated geodynamic model based on the long-term GNSS data cross-checked with the results from existing levelling, geological surveys, geophysical surveys, and a new geomorphological analysis. The model shows differently moving crustal blocks, determining the intervening boundary zones as the main risk regions, where weak earthquakes are also usually concentrated (primarily Diendorf–Cebin Tectonic Zone, Nectava–Konice Fault, Hana Faults, Běla Fault and Bulhary Fault Shear Zone). The maximum horizontal GNSS differential velocities in the exposed Bohemian Massif reach up to 1.5–2.0 mm·yr−1. The up-thrusted segments of the Western Carpathians move individually ~2 mm·yr−1. The integration of a number of full-area datasets, corresponding to various dimensions and depth levels of crustal processes, allowed us to highlight the important fault zones as driving elements of regional geodynamics.

中文翻译：

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综合GNSS、水准测量、地质、地貌和地球物理数据识别东波西米亚地块稳定地壳风险断层

摘要 在构造变形缓慢、地震活动减少的稳定地壳地区，很难识别和评估最近的活动断层，这些断层是人类关键活动的危险因素。我们在与东高山-西喀尔巴阡造山带接触时面临东波西米亚地块（中欧静脉曲张）的问题，通过建立基于长期 GNSS 数据与现有水准测量结果交叉核对的综合地球动力学模型，地质调查、地球物理调查和新的地貌分析。该模型显示了不同运动的地壳块体，确定了其间的边界带为主要风险区，弱地震通常也集中在这些区域（主要是 Diendorf-Cebin 构造带、Nectava-Konice 断层、Hana 断层、Běla断层和Bulhary断层剪切带）。暴露的波西米亚地块中的最大水平 GNSS 差分速度可达 1.5-2.0 mm·yr−1。西喀尔巴阡山脉的上冲段单独移动~2 mm·yr−1。多个全区域数据集的整合，对应于地壳过程的各种维度和深度级别，使我们能够突出重要的断裂带作为区域地球动力学的驱动要素。