气候变化领域集成服务门户(CCPortal): Evidence for Synchronization in the Global Earthquake Catalog

CCPortal

DOI	10.1029/2020GL087129
	Evidence for Synchronization in the Global Earthquake Catalog
	Bendick R.; Mencin D.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Phase alignment (synchronization) is a generalized property of interacting oscillators. If such interactions apply to earthquakes, they should manifest as time-dependent variations in earthquake productivity organized according to a characteristic elastic loading period. Defining this period as renewal interval, the time required to accumulate the elastic potential energy released in a rupture, gives a consistent scaling property that can be used to search for temporal organization. We test for the expected structure in earthquake productivity using three different statistical tools optimized for different temporal sensitivities: Schuster spectra for events with short renewal intervals (0–25 years), Fourier power spectra for events with short and intermediate renewal intervals (0–100 years), and topological data analysis (TDA) for events with long renewal intervals (>100 years). All three indicate that earthquakes are organized in time according to renewal interval. Accounting for such unsteady temporal organization may improve forecasting skill by providing time-dependent event probabilities. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Potential energy; Productivity; Statistical mechanics; Earthquake catalogs; Elastic potential energy; Event probability; Forecasting skill; Scaling properties; Temporal sensitivity; Time dependent variations; Topological data analysis; Earthquakes; earthquake catalogue; earthquake event; earthquake rupture; potential energy; probability
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/169972
作者单位	Department of Geosciences, University of Montana, Missoula, MT, United States; CIRES, University of Colorado Boulder, Boulder, CO, United States
推荐引用方式 GB/T 7714	Bendick R.,Mencin D.. Evidence for Synchronization in the Global Earthquake Catalog[J],2020,47(15).
APA	Bendick R.,&Mencin D..(2020).Evidence for Synchronization in the Global Earthquake Catalog.Geophysical Research Letters,47(15).
MLA	Bendick R.,et al."Evidence for Synchronization in the Global Earthquake Catalog".Geophysical Research Letters 47.15(2020).