GNS Science, Lower Hutt, New Zealand.
Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics (COMET), School of Earth and Environment, University of Leeds, Leeds, UK.
Science. 2017 Apr 14;356(6334). doi: 10.1126/science.aam7194. Epub 2017 Mar 23.
On 14 November 2016, northeastern South Island of New Zealand was struck by a major moment magnitude () 7.8 earthquake. Field observations, in conjunction with interferometric synthetic aperture radar, Global Positioning System, and seismology data, reveal this to be one of the most complex earthquakes ever recorded. The rupture propagated northward for more than 170 kilometers along both mapped and unmapped faults before continuing offshore at the island's northeastern extent. Geodetic and field observations reveal surface ruptures along at least 12 major faults, including possible slip along the southern Hikurangi subduction interface; extensive uplift along much of the coastline; and widespread anelastic deformation, including the ~8-meter uplift of a fault-bounded block. This complex earthquake defies many conventional assumptions about the degree to which earthquake ruptures are controlled by fault segmentation and should motivate reevaluation of these issues in seismic hazard models.
2016 年 11 月 14 日，新西兰南岛东北部发生了一次矩震级 7.8 级的大地震。实地观测结果，结合干涉合成孔径雷达、全球定位系统和地震学数据，表明这是有史以来记录到的最复杂的地震之一。这次破裂沿着已测绘和未测绘的断层向北延伸了 170 多公里，然后在岛屿的东北端继续向海中断裂。大地测量和实地观测结果显示，至少有 12 条主要断层发生了地表破裂，包括沿南部 Hikurangi 俯冲带界面可能发生的滑动；沿大部分海岸线的广泛隆起；以及广泛的弹性变形，包括一个断层边界块的约 8 米的隆起。这场复杂的地震违背了许多关于地震破裂受断层分段控制程度的传统假设，应该促使在地震危险模型中重新评估这些问题。
