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Triggered slip: Observations of the 17 August 1999 Izmit (Turkey) Earthquake using radar interferometry
Author(s) -
Wright Tim,
Fielding Eric,
Parsons Barry
Publication year - 2001
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2000gl011776
Subject(s) - seismology , geology , interferometric synthetic aperture radar , north anatolian fault , radar , interferometry , crust , slip (aerodynamics) , synthetic aperture radar , geodesy , surface rupture , displacement (psychology) , fault (geology) , geophysics , remote sensing , optics , psychology , telecommunications , physics , computer science , psychotherapist , thermodynamics
We use Synthetic Aperture Radar interferometry (InSAR) to map the displacement field of the 17 August 1999 Izmit earthquake, which largely conforms to that predicted for an elastic upper crust. We determine the earthquake source parameters and show that slip continues farther west than the mapped fault ruptures. We also show that additional sub‐surface displacements occurred on parallel strands of the North Anatolian Fault Zone. We argue that this was caused by changes in static stress accompanying the mainshock, or by the dynamic release of regional stresses.