气候变化领域集成服务门户(CCPortal): 3D fault architecture controls the dynamism of earthquake swarms

CCPortal

DOI	10.1126/science.abb0779
	3D fault architecture controls the dynamism of earthquake swarms
	Ross Z.E.; Cochran E.S.; Trugman D.T.; Smith J.D.
发表日期	2020
ISSN	0036-8075
起始页码	1357
结束页码	1361
卷号	368 期号:6497
英文摘要	The vibrant evolutionary patterns made by earthquake swarms are incompatible with standard, effectively two-dimensional (2D) models for general fault architecture. We leverage advances in earthquake monitoring with a deep-learning algorithm to image a fault zone hosting a 4-year-long swarm in southern California. We infer that fluids are naturally injected into the fault zone from below and diffuse through strike-parallel channels while triggering earthquakes. A permeability barrier initially limits up-dip swarm migration but ultimately is circumvented. This enables fluid migration within a shallower section of the fault with fundamentally different mechanical properties. Our observations provide high-resolution constraints on the processes by which swarms initiate, grow, and arrest. These findings illustrate how swarm evolution is strongly controlled by 3D variations in fault architecture. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	algorithm architecture earthquake swarm fault fault zone mechanical property three-dimensional modeling two-dimensional modeling California United States algorithm article California deep learning earthquake permeability barrier
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133420
推荐引用方式 GB/T 7714	Ross Z.E.,Cochran E.S.,Trugman D.T.,et al. 3D fault architecture controls the dynamism of earthquake swarms[J]. Science,2020,368(6497).
APA	Ross Z.E.,Cochran E.S.,Trugman D.T.,&Smith J.D..(2020).3D fault architecture controls the dynamism of earthquake swarms.,368(6497).
MLA	Ross Z.E.,et al."3D fault architecture controls the dynamism of earthquake swarms".368.6497(2020).