DOI: 10.1002/2016GL069800
论文题名: Stress drop estimates and hypocenter relocations of induced seismicity near Crooked Lake, Alberta
作者: Clerc F. ; Harrington R.M. ; Liu Y. ; Gu Y.J.
刊名: Geophysical Research Letters
ISSN: 0094-8902
EISSN: 1944-8633
出版年: 2016
卷: 43, 期: 13 起始页码: 6942
结束页码: 6951
语种: 英语
英文关键词: hydraulic fracturing
; induced seismicity
; spectral ratio
; stress drop
Scopus关键词: Drops
; Earthquake effects
; Geophysics
; Hydraulic fracturing
; Induced Seismicity
; Lakes
; Seismology
; Tectonics
; Earthquake catalogues
; Earthquake magnitudes
; Hypocenter relocation
; Injection wells
; Spectral ratios
; Stress drop
; Tectonic earthquakes
; Tectonic events
; Earthquakes
英文摘要: We use a sequence of induced earthquakes near Crooked Lake, Alberta, to investigate the physical differences between induced and tectonic earthquakes. Starting with the Natural Resources Canada earthquake catalogue, we use a spectral ratio method to calculate the static stress drops of a group of relocated earthquakes ranging from December 2013 to June 2015. We find that stress drops fall within the high side of the typical reported range of tectonic events and show no correlation with earthquake magnitude, depth, or distance from the well. The stress drops appear roughly constant for events with Mw 3 to 4. Relocated hypocenters cluster both spatially and temporally around corresponding injection wells and appear to migrate deeper with increasing time from injection. Fine-scale lineations apparent in relocated hypocenters could indicate the presence and orientation of fault planes, consistent with the published focal mechanism solutions of M 4+ events in the area. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978511921&doi=10.1002%2f2016GL069800&partnerID=40&md5=83bf8c17fc6e6248cffbca3e1aeb7a2e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9865
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: Department of Earth and Planetary Sciences, McGill University, Montreal, QC, Canada
Recommended Citation:
Clerc F.,Harrington R.M.,Liu Y.,et al. Stress drop estimates and hypocenter relocations of induced seismicity near Crooked Lake, Alberta[J]. Geophysical Research Letters,2016-01-01,43(13).