TY - JOUR
T1 - Coseismic interferograms of two Ms=6.6 earthquakes in the South Iceland Seismic Zone, June 2000
AU - Pedersen, Rikke
AU - Sigmundsson, Freysteinn
AU - Feigl, Kurt L.
AU - Árnadóttir, Þóra
PY - 2001/9/1
Y1 - 2001/9/1
N2 - We present InSAR observations of deformation due to two Ms = 6.6 earthquakes in the South Iceland Seismic Zone in June 2000. Coseismic deformation predominates in the ERS interferograms. Range change, due to mainly right-lateral strike-slip on N-S striking faults, amounting to more than 15 cm is observed, although displacement is mainly perpendicular to the satellite look direction. Using elastic dislocation models in a trial-and-error scheme, we find a best-fitting model that agrees well with the aftershock locations and moment magnitudes estimated from seismograms. The June 17 model has a fault patch 16 km long, 10 km deep, striking N05°E, dipping 86°, with a slip maximum of 2.40 m. The June 21 model has a vertical patch 15 km long, 9 km deep, striking N01°W, with a slip maximum of 2.15 m.
AB - We present InSAR observations of deformation due to two Ms = 6.6 earthquakes in the South Iceland Seismic Zone in June 2000. Coseismic deformation predominates in the ERS interferograms. Range change, due to mainly right-lateral strike-slip on N-S striking faults, amounting to more than 15 cm is observed, although displacement is mainly perpendicular to the satellite look direction. Using elastic dislocation models in a trial-and-error scheme, we find a best-fitting model that agrees well with the aftershock locations and moment magnitudes estimated from seismograms. The June 17 model has a fault patch 16 km long, 10 km deep, striking N05°E, dipping 86°, with a slip maximum of 2.40 m. The June 21 model has a vertical patch 15 km long, 9 km deep, striking N01°W, with a slip maximum of 2.15 m.
UR - http://www.scopus.com/inward/record.url?scp=0035448106&partnerID=8YFLogxK
U2 - 10.1029/2001GL013235
DO - 10.1029/2001GL013235
M3 - Article
AN - SCOPUS:0035448106
VL - 28
SP - 3341
EP - 3344
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 17
ER -