气候变化领域集成服务门户(CCPortal): Rapidly Evolving Controls of Landslides After a Strong Earthquake and Implications for Hazard Assessments

CCPortal

DOI	10.1029/2020GL090509
	Rapidly Evolving Controls of Landslides After a Strong Earthquake and Implications for Hazard Assessments
	Fan X.; Yunus A.P.; Scaringi G.; Catani F.; Siva Subramanian S.; Xu Q.; Huang R.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:1
英文摘要	Strong earthquakes, especially on mountain slopes, can generate large amounts of unconsolidated deposits, prone to remobilization by aftershocks and rainstorms. Assessing the hazard they pose and what drives their movement in the years following the mainshock has not yet been attempted, primarily because multitemporal landslide inventories are lacking. By exploiting a multitemporal inventory (2005–2018) covering the epicentral region of the 2008 Wenchuan Earthquake and a set of conditioning factors (seismic, topographic, and hydrological), we perform statistical tests to understand the temporal evolution of these factors affecting debris remobilizations. Our analyses, supported by a random-forest susceptibility assessment model, reveal a prediction capability of seismic-related variables declining with time, as opposed to hydro-topographic parameters gaining importance and becoming predominant within a decade. These results may have important implications on the way conventional susceptibility/hazard assessment models should be employed in areas where coseismic landslides are the main sediment production mechanism on slopes. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Decision trees; Hazards; Landslides; Storms; 2008 wenchuan earthquakes; Assessment models; Hazard Assessment; Landslide inventories; Prediction capability; Sediment production; Strong earthquakes; Temporal evolution; Earthquakes
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169271
作者单位	State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, Sichuan, China; Faculty of Science, Institute of Hydrogeology, Engineering Geology and Applied Geophysics, Charles University, Prague, Czech Republic; Department of Geosciences, University of Padova, Padova, Italy
推荐引用方式 GB/T 7714	Fan X.,Yunus A.P.,Scaringi G.,et al. Rapidly Evolving Controls of Landslides After a Strong Earthquake and Implications for Hazard Assessments[J],2021,48(1).
APA	Fan X..,Yunus A.P..,Scaringi G..,Catani F..,Siva Subramanian S..,...&Huang R..(2021).Rapidly Evolving Controls of Landslides After a Strong Earthquake and Implications for Hazard Assessments.Geophysical Research Letters,48(1).
MLA	Fan X.,et al."Rapidly Evolving Controls of Landslides After a Strong Earthquake and Implications for Hazard Assessments".Geophysical Research Letters 48.1(2021).