TY - JOUR
T1 - Plate boundary deformation and man-made subsidence around geothermal fields on the Reykjanes Peninsula, Iceland
AU - Keiding, M.
AU - Árnadóttir, T.
AU - Jónsson, S.
AU - Decriem, J.
AU - Hooper, A.
PY - 2010/7/30
Y1 - 2010/7/30
N2 - We present Interferometric Synthetic Aperture Radar (InSAR) data from 1992-1999 and 2003-2008 as well as GPS data from 2000-2009 for the active plate boundary on the Reykjanes Peninsula, southwest Iceland. The geodetic data reveal deformation mainly due to plate spreading, anthropogenic subsidence caused by geothermal fluid extraction and, possibly, increasing pressure in a geothermal system. Subsidence of around 10. cm is observed during the first 2. years of production at the Reykjanes geothermal power plant, which started operating in May 2006. We model the surface subsidence around the new power plant using point and ellipsoidal pressure sources in an elastic halfspace. Short-lived swarms of micro-earthquakes as well as aseismic fault movement are observed near the geothermal field following the start of production, possibly triggered by the stresses induced by geothermal fluid extraction.
AB - We present Interferometric Synthetic Aperture Radar (InSAR) data from 1992-1999 and 2003-2008 as well as GPS data from 2000-2009 for the active plate boundary on the Reykjanes Peninsula, southwest Iceland. The geodetic data reveal deformation mainly due to plate spreading, anthropogenic subsidence caused by geothermal fluid extraction and, possibly, increasing pressure in a geothermal system. Subsidence of around 10. cm is observed during the first 2. years of production at the Reykjanes geothermal power plant, which started operating in May 2006. We model the surface subsidence around the new power plant using point and ellipsoidal pressure sources in an elastic halfspace. Short-lived swarms of micro-earthquakes as well as aseismic fault movement are observed near the geothermal field following the start of production, possibly triggered by the stresses induced by geothermal fluid extraction.
KW - Geothermal fields
KW - Interferometric Synthetic Aperture Radar (InSAR)
KW - Man-made subsidence
KW - Plate boundary
KW - Triggered earthquakes
UR - http://www.scopus.com/inward/record.url?scp=77954535680&partnerID=8YFLogxK
U2 - 10.1016/j.jvolgeores.2010.04.011
DO - 10.1016/j.jvolgeores.2010.04.011
M3 - Article
AN - SCOPUS:77954535680
SN - 0377-0273
VL - 194
SP - 139
EP - 149
JO - Journal of Volcanology and Geothermal Research
JF - Journal of Volcanology and Geothermal Research
IS - 4
ER -