【摘要】 利用南天山流动重力网2009～2011年的测量资料,研究了乌恰两次MS5.1地震前后重力场的时空动态演化特征。研究表明,在两次乌恰MS5.1地震前后,重力场变化表现出"活跃—平静—活跃"特征,两次地震发生在重力场异常上升和下降变化过程中,且震中位置处于重力变化高梯度带且靠近"0"等值线附近。更多还原

【Abstract】 Using the mobile gravimetric data from 2009 to 2011 in southern Tianshan Area,the dynamic changes of the gravity field before and after two MS5.1 Wuqia earthquakes are researched."Active-quiet-active" is the characteristics of the gravity field before and after MS 5.1 Wuqia earthquakes.The two earthquakes occurred in the gravity anomaly process of rising and falling change,and the epicenters located in the high gradient zone of gravity variation and were close to the" 0" equivalent line.更多还原