DOI: 10.1002/2014GL061676
论文题名: Under what circumstances does a seismogenic patch produce aseismic transients in the later interseismic period?
作者: Noda H. ; Hori T.
刊名: Geophysical Research Letters
ISSN: 0094-9634
EISSN: 1944-9365
出版年: 2014
卷: 41, 期: 21 起始页码: 7477
结束页码: 7484
语种: 英语
英文关键词: aseismic transient
; earthquake
; earthquake sequence simulation
; nucleation
; rate- and state-dependent friction
Scopus关键词: Creep
; Nucleation
; Transients
; Disaster mitigation
; Earthquake sequences
; Geophysical observations
; Inertial effect
; Inter-seismic periods
; Linear Stability
; State-dependent
; Earthquakes
; geophysical survey
; linear programing
; seismic data
; seismic property
; seismic survey
; simulation
英文摘要: Whether aseismic transients occur as the next earthquake approaches or not is an important problem in the area of disaster mitigation by geophysical observation. We conducted a series of rate-state (aging law) earthquake sequence simulations with inertial effects and revealed that A/B (direct effect/evolution effect) is a key parameter controlling the complexity of interseismic behavior in a seismogenic patch. Interseismically, a creep front invades a locked patch. If A/B≤0.4, nucleation takes place as soon as the linear stability of the coherent creep is violated, and no significant aseismic transient occurs. If A/B≥0.4, nucleation size is given by the energy balance criterion, and if A/B≥0.6, aseismic transients occur after the violation of linear stability and before the creeping region is able to host the nucleation. Thus, not only A - B but also A/B must be selected carefully to obtain realistic results in numerical simulations. Key PointsNucleation size is estimated by 3-D rate-state earthquake sequence simulationsLarge A/B causes complex interseismic behavior of a seismogenic patchSSEs occur in the later interseismic period for A/B larger than 0.6 ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84912101475&doi=10.1002%2f2014GL061676&partnerID=40&md5=2e0d364cea146530b799a2339ec4ff04
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6898
Appears in Collections: 气候减缓与适应
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作者单位: Department of Mathematical Science and Advanced Technology, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
Recommended Citation:
Noda H.,Hori T.. Under what circumstances does a seismogenic patch produce aseismic transients in the later interseismic period?[J]. Geophysical Research Letters,2014-01-01,41(21).