• 责任者：Zeng Qingping (Earthquake Administration of Jiangxi Province ; Nanchang 330039 ; China) ; Tang Lanrong
• 刊名：South China Seismological Journal
• 出版年：2009
• 卷期：29(1)
• 关键词：强震 ; strong earthquakes ; 地震序列 ; seismic sequence ; 江西 ; Jiangxi Province
• 页码：p.61-68
• 图表：4 illus., 1 table, 15 refs.
• 分类号：0500
• issnNo：ISSN1001-8662
• isbnNo：CN44-1266/P

The hypocentral locations and velocity structure of the 2005 Jiujiang -Ruichang M_s5.7 earthquake sequence have been identified using the simultaneous inversion method. The results show that this sequence displays two conjugated distributions at the directions of NW330° and NE55° respectively, but the former is more obvious. The focal depths vary from 3 km to 18 km and the main rupture occurred in the low P wave velocity zone of the upper -middle crust transition layer. Aftershocks developed along the southeast and northwest directions, but the latter probably encountered an asperity, and continued to rupture along the southeast -northeast direction and triggered the M_S4.8 strong aftershock.