GSTDTAP  > 气候变化
DOI10.1029/2020GL089271
The 2018 MW 7.5 Papua New Guinea earthquake: A dissipative and cascading rupture process
Xu Zhang; Wanpeng Feng; Hailin Du; Lu Li; Shuai Wang; Lei Yi; Yongzhe Wang
2020-09-02
发表期刊Geophysical Research Letters
出版年2020
英文摘要

The 2018 MW 7.5 Papua New Guinea earthquake is the largest earthquake instrumentally recorded in the Papuan Fold Belt since 1900. Based on a combined analysis of back‐projection imaging and finite‐fault joint inversion, we determined a complex spatio‐temporal rupture model of the mainshock. During the rupture process, three major asperities were ruptured successively with relatively low rupture velocities ranging from 1.9 km/s to 2.3 km/s. The spatio‐temporal evolution of the imparted Coulomb stress indicates that the rupture of the preceding asperity played an important role in triggering the delayed rupture of the adjacent asperity. Based on our rupture model, the upper bound of the radiation efficiency of this event is estimated to be 9.7‐12.3%, a relatively low value, indicating that this earthquake is extremely dissipative. The high energy dissipation implies that the 2018 MW 7.5 Papua New Guinea earthquake may be controlled by the immature seismogenic environment.

领域气候变化
URL查看原文
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/293074
专题气候变化
推荐引用方式
GB/T 7714
Xu Zhang,Wanpeng Feng,Hailin Du,et al. The 2018 MW 7.5 Papua New Guinea earthquake: A dissipative and cascading rupture process[J]. Geophysical Research Letters,2020.
APA Xu Zhang.,Wanpeng Feng.,Hailin Du.,Lu Li.,Shuai Wang.,...&Yongzhe Wang.(2020).The 2018 MW 7.5 Papua New Guinea earthquake: A dissipative and cascading rupture process.Geophysical Research Letters.
MLA Xu Zhang,et al."The 2018 MW 7.5 Papua New Guinea earthquake: A dissipative and cascading rupture process".Geophysical Research Letters (2020).
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Xu Zhang]的文章
[Wanpeng Feng]的文章
[Hailin Du]的文章
百度学术
百度学术中相似的文章
[Xu Zhang]的文章
[Wanpeng Feng]的文章
[Hailin Du]的文章
必应学术
必应学术中相似的文章
[Xu Zhang]的文章
[Wanpeng Feng]的文章
[Hailin Du]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。