Premium
Displacement field and fault model for the September 7, 1999 Athens Earthquake inferred from ERS2 Satellite radar interferometry
Author(s) -
Kontoes C.,
Elias P.,
Sykioti O.,
Briole P.,
Remy D.,
Sachpazi M.,
Veis G.,
Kotsis I.
Publication year - 2000
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 - 10.1029/2000gl008510
Subject(s) - geology , seismology , interferometry , interferometric synthetic aperture radar , fault plane , slip (aerodynamics) , geodesy , fault (geology) , radar , amplitude , satellite , synthetic aperture radar , remote sensing , optics , physics , engineering , aerospace engineering , telecommunications , computer science , thermodynamics
On September 7, 1999, a moderate ( M w =5.9) normal faulting earthquake occurred in the northwest of Athens (Hellas) causing heavy damages and casualties. Using interferometric combinations of ERS2 SAR images, we analyzed the coseismic deformation field. Two fringes are observed south of the Fili mountain, up to the coastline of the Elefsis gulf. They correspond to 56 mm increase in slant range. Modeling the earthquake as a dislocation in an elastic half‐space, we inverted the interferometric data to assess the fault location and geometry and the amplitude of the coseismic slip. The model suggests ∼300 mm slip on an 18 km long blind fault composed of two pieces. The intersection of the fault plane with the Earth surface is located in the Fili mountain with a ∼N120° orientation.