Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/2015TC004091 |
Coulomb stress evolution in a diffuse plate boundary: 1400 years of earthquakes in eastern California and western Nevada, USA | |
Verdecchia, Alessandro; Carena, Sara | |
通讯作者 | Verdecchia, Alessandro |
来源期刊 | TECTONICS |
ISSN | 0278-7407 |
EISSN | 1944-9194 |
出版年 | 2016 |
卷号 | 35期号:8页码:1793-1811 |
英文摘要 | Diffuse plate boundaries are characterized by deformation distributed over a wide area in a complex network of active faults and by relatively low strain rates. These characteristics make it difficult to understand the spatial and temporal distribution of seismicity. The area east of the Sierra Nevada, between longitudes 121 degrees W and 116 degrees W, is part of a diffuse plate boundary. At least 17 major surface-rupturing earthquakes have happened here in the last 1400 years. Our purpose is to determine whether these events influence each other or whether they are randomly distributed in time and space. We model the evolution of coseismic and postseismic Coulomb failure stress changes (Delta CFS) produced by these earthquakes, and we also model interseismic stresses on the entire fault network. Our results show that 80% of the earthquake ruptures are located in areas of combined coseismic and postseismic Delta CFS >= 0.2 bar. This relationship is robust, as shown by the control tests that we carried out using random earthquake sequences. We also show that the Fish Lake Valley, Pyramid Lake, and Honey Lake faults have accumulated 45, 37, and 27 bars, respectively, of total Delta CFS (i.e., coseismic + postseismic + interseismic) in the last 1400 years. Such values are comparable to the average stress drop in a major earthquake, and these three faults may be therefore close to failure. |
类型 | Article |
语种 | 英语 |
国家 | Germany |
收录类别 | SCI-E |
WOS记录号 | WOS:000382943600002 |
WOS关键词 | NORTHERN WALKER LANE ; DIXIE VALLEY EARTHQUAKES ; MOUNTAIN FAULT ZONE ; 1954 FAIRVIEW PEAK ; SLIP-RATE ; MOJAVE-DESERT ; SOUTHERN CALIFORNIA ; STRAIN ACCUMULATION ; ANATOLIAN FAULT ; BLACK MOUNTAINS |
WOS类目 | Geochemistry & Geophysics |
WOS研究方向 | Geochemistry & Geophysics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/196635 |
作者单位 | Univ Munich, Dept Earth & Environm Sci, Munich, Germany |
推荐引用方式 GB/T 7714 | Verdecchia, Alessandro,Carena, Sara. Coulomb stress evolution in a diffuse plate boundary: 1400 years of earthquakes in eastern California and western Nevada, USA[J],2016,35(8):1793-1811. |
APA | Verdecchia, Alessandro,&Carena, Sara.(2016).Coulomb stress evolution in a diffuse plate boundary: 1400 years of earthquakes in eastern California and western Nevada, USA.TECTONICS,35(8),1793-1811. |
MLA | Verdecchia, Alessandro,et al."Coulomb stress evolution in a diffuse plate boundary: 1400 years of earthquakes in eastern California and western Nevada, USA".TECTONICS 35.8(2016):1793-1811. |
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