globalchange  > 气候变化与战略
DOI: 10.1016/j.tecto.2021.228756
论文题名:
Three-dimensional paganica fault morphology obtained from hypocenter clustering (L'Aquila 2009 seismic sequence, Central Italy)
作者: Brunsvik B.; Morra G.; Cambiotti G.; Chiaraluce L.; Di Stefano R.; De Gori P.; Yuen D.A.
刊名: Tectonophysics
ISSN: 00401951
出版年: 2021
卷: 804
语种: 英语
中文关键词: Clustering ; Fault morphology ; L'Aquila earthquake sequence
英文关键词: 3D modeling ; Faulting ; Morphology ; Structural geology ; Analytical method ; Earthquake sequences ; Induced stress ; Micro-earthquakes ; Paganica faults ; Seismic modelling ; Seismic sequence ; Unsupervised clustering technique ; Earthquakes ; earthquake event ; earthquake hypocenter ; earthquake rupture ; fault geometry ; seismicity ; three-dimensional modeling ; unsupervised classification ; Abruzzi ; Italy ; L'Aquila ; Paganica ; Aquila
英文摘要: In seismic modelling, fault planes are normally assumed to be flat due to the lack of data which can constrain fault morphology. However, incorporating 3D fault morphology is important for modelling several phenomena, for example calculating mainshock induced stress changes. We utilize a data-analytical method to unveil the 3D rupture morphology of faults using unsupervised clustering techniques applied to earthquake hypocenters in seismic sequences. We apply this method to the 2009 L'Aquila seismic sequence which involved a MW 6.1 mainshock on April 6th. We use a dataset of about 50,000 relocated events, mostly microearthquakes, reaching magnitude of completeness equal to 0.7. Clustering distinguishes the earthquakes as occurring in three main clusters along with other minor fault segments. We then represent the morphology of the main Paganica fault system (responsible for the largest mainshock) using splines. This method shows promise as a step toward robustly and quickly obtaining 3D rupture morphologies where earthquake sequences have been monitored. The 3D model is presented interactively online, and the processing is presented in an interactive Jupyter Notebook (https://bit.ly/2MnCFdj). © 2021 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170782
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: School of Geosciences, University of Louisiana at LafayetteLA 70504, United States; Department of Earth Science, University of California Santa BarbaraCA 93106, United States; Department of Physics, University of Louisiana at LafayetteLA 70504, United States; Department of Earth Sciences, University of Milan, Via Cicognara 7, Milano, 20133, Italy; Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata, Rome, 605 00143, Italy; Dept. of Earth Sciences and Minnesota Supercomputing Institute, University of Minnesota, Minneapolis, MN 55455, United States; Dept. of Applied Physics and Applied Mathematics, Columbia University, New York, NY 10026, United States

Recommended Citation:
Brunsvik B.,Morra G.,Cambiotti G.,et al. Three-dimensional paganica fault morphology obtained from hypocenter clustering (L'Aquila 2009 seismic sequence, Central Italy)[J]. Tectonophysics,2021-01-01,804
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Brunsvik B.]'s Articles
[Morra G.]'s Articles
[Cambiotti G.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Brunsvik B.]'s Articles
[Morra G.]'s Articles
[Cambiotti G.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Brunsvik B.]‘s Articles
[Morra G.]‘s Articles
[Cambiotti G.]‘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.