【摘要】 基于河西地区的重力观测资料,分析2008年3月30日甘肃肃南5.0级地震前重力场的时空演化特征,结果表明:该次地震前古浪-天祝-永登-海原一带,存在(-30~60)×10-8ms-2的重力异常变化。更多还原

【Abstract】 On the basis of the mobile gravity data of Hexi area, the characters of gravity field varition before the Sunan Ms5.0 earthquakes are analysised. The results show that the gravity changes are about (-30—60)×10-8ms-2 around Gulang-Tianzhu-Yongdeng-Haiyuan before the earthquake.更多还原