DOI: 10.1002/grl.50416
论文题名: Convergence of the frequency-size distribution of global earthquakes
作者: Bell A.F. ; Naylor M. ; Main I.G.
刊名: Geophysical Research Letters
ISSN: 0094-8934
EISSN: 1944-8665
出版年: 2013
卷: 40, 期: 11 起始页码: 2585
结束页码: 2589
语种: 英语
英文关键词: earthquake magnitudes
; Gutenberg-Richter Law
; power-law statistics
Scopus关键词: Centroid moment tensors
; Convergence properties
; Earthquake magnitudes
; Frequency-magnitude distribution
; Frequency-magnitude relations
; Frequency-size distributions
; Gutenberg-Richter law
; Power-law statistics
; Earth sciences
; Geophysics
; Earthquakes
; convergence
; earthquake magnitude
; frequency-magnitude distribution
; power law
; seismology
; size distribution
英文摘要: The Gutenberg-Richter (GR) frequency-magnitude relation is a fundamental empirical law of seismology, but its form remains uncertain for rare extreme events. Here, we show that the temporal evolution of model likelihoods and parameters for the frequency-magnitude distribution of the global Harvard Centroid Moment Tensor catalog is inconsistent with an unbounded GR relation, despite if being the preferred model at the current time. During the recent spate of 12 great earthquakes in the last 8 years, record-breaking events result in profound steps in favor of the unbounded GR relation. However, between such events the preferred model gradually converges to the tapered GR relation, and the form of the convergence cannot be explained by random sampling of an unbounded GR distribution. The convergence properties are consistent with a global catalog composed of superposed randomly-sampled regional catalogs, each with different upper bounds, many of which have not yet sampled their largest event. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879976262&doi=10.1002%2fgrl.50416&partnerID=40&md5=ef0e9f4331874b96532656952a92a959
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6198
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: School of GeoSciences, University of Edinburgh, Edinburgh, United Kingdom
Recommended Citation:
Bell A.F.,Naylor M.,Main I.G.. Convergence of the frequency-size distribution of global earthquakes[J]. Geophysical Research Letters,2013-01-01,40(11).