globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2020.116723
论文题名:
Dynamic triggering of earthquakes in the North Island of New Zealand following the 2016 Mw 7.8 Kaikōura earthquake
作者: Yao D.; Peng Z.; Kaneko Y.; Fry B.; Meng X.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2021
卷: 557
语种: 英语
中文关键词: dynamic stress modeling ; dynamic triggering ; earthquake detection ; Kaikōura earthquake ; slow-slip event ; Taupo Volcano Zone
英文关键词: Seismic waves ; Template matching ; Dynamic stressing ; Dynamic triggering ; Earthquake catalogs ; Earthquake forecasting ; Large earthquakes ; Template matching technique ; Triggered Earthquakes ; Triggering mechanism ; Earthquakes ; detection method ; dynamic analysis ; earthquake catalogue ; earthquake event ; earthquake trigger ; numerical model ; seismic wave ; seismicity ; stress analysis ; trigger mechanism ; Kaikoura ; Marlborough ; New Zealand ; North Island ; South Island ; Taupo Volcanic Zone
英文摘要: Large earthquakes are capable of triggering microseismicity, deep tremor and slow-slip events from intermediate- to long-distance ranges. Unfortunately, earthquake catalogs are typically incomplete right after large mainshocks. Hence, mapping triggering patterns and understanding the underlying triggering mechanism are challenging. Here we present two different types of seismicity responses to dynamic stressing by passing seismic waves in the North Island of New Zealand following the 2016 Mw 7.8 Kaikōura earthquake. Based on a template matching technique, we identify up to 4-7 times more earthquakes than listed in New Zealand's GeoNet catalog. We also compute the dynamic stress perturbations in the North Island due to the Kaikōura mainshock and compare them to seismicity rate changes to identify regions with high susceptibility to dynamic stress triggering. Abundant triggered earthquakes occurred immediately following the mainshock in the shallow crust around the active Taupo Volcano Zone, likely related to activation of crustal faults/fluids associated with back-arc rifting and volcanism. Approximately 8 days after the initial dynamic stressing, an active burst of seismicity with the largest event of ML 5.55 occurred along the shallow megathrust near Porangahau on the east coast of the North Island. This burst of seismicity is likely driven by a ∼Mw 7.1 shallow slow slip event dynamically triggered by the mainshock. Our findings reveal the heterogeneous nature of dynamic triggering in a plate boundary region with recent large earthquake sequences and aseismic transient events and further highlight the difficulties in time-dependent earthquake forecasting following large mainshocks. © 2020 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165729
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Earth and Environmental Sciences, College of Literature, Science, and the Arts, University of Michigan, Ann Arbor, MI, United States; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, United States; GNS Science, Lower Hutt, New Zealand; Kyoto University, Kyoto, Japan; Southern California Earthquake Center, University of Southern California, Los Angeles, CA, United States

Recommended Citation:
Yao D.,Peng Z.,Kaneko Y.,et al. Dynamic triggering of earthquakes in the North Island of New Zealand following the 2016 Mw 7.8 Kaikōura earthquake[J]. Earth and Planetary Science Letters,2021-01-01,557
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yao D.]'s Articles
[Peng Z.]'s Articles
[Kaneko Y.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Yao D.]'s Articles
[Peng Z.]'s Articles
[Kaneko Y.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yao D.]‘s Articles
[Peng Z.]‘s Articles
[Kaneko Y.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.