Coseismic interferograms of two Ms=6.6 earthquakes in the South Iceland Seismic Zone, June 2000

Rikke Pedersen*, Freysteinn Sigmundsson, Kurt L. Feigl, Þóra Árnadóttir

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)3341-3344
Number of pages4
JournalGeophysical Research Letters
Volume28
Issue number17
DOIs
Publication statusPublished - 1 Sep 2001

Fingerprint

Dive into the research topics of 'Coseismic interferograms of two Ms=6.6 earthquakes in the South Iceland Seismic Zone, June 2000'. Together they form a unique fingerprint.

Cite this