DOI: 10.1002/2015GL064772
论文题名: Differentiating induced and natural seismicity using space-time-magnitude statistics applied to the Coso Geothermal field
作者: Schoenball M. ; Davatzes N.C. ; Glen J.M.G.
刊名: Geophysical Research Letters
ISSN: 0094-8594
EISSN: 1944-8325
出版年: 2015
卷: 42, 期: 15 起始页码: 6221
结束页码: 6228
语种: 英语
英文关键词: earthquake clustering
; earthquake scaling
; induced seismicity
; nearest neighbors
Scopus关键词: Geophysics
; Geothermal fields
; Seismology
; Coso geothermal field
; Earthquake clustering
; Frequency size distributions
; Induced seismicity
; Natural earthquake
; Natural seismicity
; Nearest neighbor distance
; Nearest neighbors
; Earthquakes
; earthquake event
; earthquake magnitude
; fault
; geothermal system
; induced seismicity
; scale effect
; size distribution
; California
; Coso Geothermal Field
; United States
英文摘要: A remarkable characteristic of earthquakes is their clustering in time and space, displaying their self-similarity. It remains to be tested if natural and induced earthquakes share the same behavior. We study natural and induced earthquakes comparatively in the same tectonic setting at the Coso Geothermal Field. Covering the preproduction and coproduction periods from 1981 to 2013, we analyze interevent times, spatial dimension, and frequency-size distributions for natural and induced earthquakes. Individually, these distributions are statistically indistinguishable. Determining the distribution of nearest neighbor distances in a combined space-time-magnitude metric, lets us identify clear differences between both kinds of seismicity. Compared to natural earthquakes, induced earthquakes feature a larger population of background seismicity and nearest neighbors at large magnitude rescaled times and small magnitude rescaled distances. Local stress perturbations induced by field operations appear to be strong enough to drive local faults through several seismic cycles and reactivate them after time periods on the order of a year. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84940447504&doi=10.1002%2f2015GL064772&partnerID=40&md5=c061d539286e15d06b0e62b4ef16e5de
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8210
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Earth and Environmental Science, Temple University, Philadelphia, PA, United States
Recommended Citation:
Schoenball M.,Davatzes N.C.,Glen J.M.G.. Differentiating induced and natural seismicity using space-time-magnitude statistics applied to the Coso Geothermal field[J]. Geophysical Research Letters,2015-01-01,42(15).