山东跨断层短水准异常的可能物理机理

POSSIBLE PHYSICS MECHANISM OF CROSS-FAULT SHORT LEVELING PRECURSOR ANOMALY IN SHANDONG AREA

摘要: 针对2006-2008年郯庐断裂带中南段的高峰头、武胜、甘霖等跨断层短水准测量出现的显著异常变化,基于华北南部地区地震活动增强的力学背景分析和华北南部地区与青藏高原东北缘地质构造的关联性特征,分析表明,该远场异常变化可能与汶川8.0级地震的孕育和发生有关。

Abstract: On basis of mechanical background analysis of increased seismic activity in southern North China and architectonic relevance between southern North China and the northeast edge of the Tibetan Plateau, significant change of cross-fault short leveling on Gaofengtou, Wusheng, Ganlin and et al.in middle southern segment of the Tanlu fault zone during 2007-2008 is analyzed.The result shows that the significant change may be related to the 2008 Wenchuan M8.0 great earthquake.