中文摘要：

2016年11月13日新西兰南岛北端凯库拉（Kaikoura）发生了Mw7．8大地震，造成了强烈的地表变形并引发大面积滑坡和海啸的发生．基于美国地质调查局（USGS）断层滑动模型，建立全球同震横向不均匀并行椭球型地球模型，计算了此次新西兰凯库拉大地震产生的同震形变和应力及库仑应力变化．初步计算结果表明：新西兰凯库拉Mw7．8地震造成断层上盘东北向抬升，下盘西南俯冲；引起发震区域同震位移较大，从凯库拉到坎贝拉（Campbell）以及首都惠灵顿（Wellington）整体上东北向抬升，最大同震水平位移1．2m，垂直位移1．1m．此次大地震释放了发震断层上积累的压应力，但增加了发震断层两端的挤压力；同时，同震剪应力变化增加了NE—SW向断层发生右旋滑动的危险性；采用此次地震发震断层参数计算得出的最大库仑应力变化增加区域集中在发震断层两端，可达到MPa量级．当分别采用新西兰北岛Awatere断裂系和南岛Wellington断裂系参数计算库仑应力变化时，发现新西兰北岛和南岛震中以南区域的库仑应力均增加，可触发部分余震的发生．

英文摘要：

On 13 November, 2016, an MwT. 8 earthquake occurred around Kaikoura, northern South Island, New Zealand. The MwT. 8 earthquake caused strong surface deformation, massive landslides and tsunami. Based on the fault slip model released by United States Geological Survey, the co-seismic deformation and stress changes by Kaikoura MwT. 8 earthquake were computed with the global heterogeneous ellipsoid Earth model and high precision topography. The preliminary result show that the footwall of the MwT. 8 earthquake uplifted to the northeast, while the hanging wall underthrusting southwest. The co-seismic deformation triggered by this earthquake up to several center meters from Kaikoura to Campbell and the capital city of Wellington. The maximum co-seismic horizontal displacement is about 1.2 m whereas the vertical is about 1. 1 m. Although the accumulated strain along seismogenic faults has been released by this earthquake. The extrusion force at the both ends of the seismogenic faults also increased due to co-seismic stress changes that the maximum value of the co-seismic stress changes reaches the order of MPa. The Coulomb failure stress changes are also up to MPa that concentrates in the vicinity of epicenter. At the same time, the risk for NE-SW dextral slip faults increases due to the co-seismic shear stress. We also calculated the Coulomb Failure Stress changes in the North Island and South Island with local faults systems respectively. Our results show that Coulomb failure stress changes are positive in both two regions, which means subsequent earthquakes are possible.