The complete (3-D) surface displacement field in the epicentral area of the 1999 M(w)7.1 Hector Mine earthquake, California, from space geodetic observations

Authors
Fialko, Y Simons, M Agnew, D
Citation
Y. Fialko et al., The complete (3-D) surface displacement field in the epicentral area of the 1999 M(w)7.1 Hector Mine earthquake, California, from space geodetic observations, GEOPHYS R L, 28(16), 2001, pp. 3063-3066
Citations number
6
Categorie Soggetti
Earth Sciences
Journal title
GEOPHYSICAL RESEARCH LETTERS
ISSN journal
00948276 → ACNP
Volume
28
Issue
16
Year of publication
2001
Pages
3063 - 3066
Database
ISI
SICI code
0094-8276(20010815)28:16<3063:TC(SDF>2.0.ZU;2-8
Abstract
We use Interferometric Synthetic Aperture Radar (InSAR) data to derive cont inuous maps for three orthogonal components of the co-seismic surface displ acement field due to the 1999 M-w 7.1 Hector Mine earthquake in southern Ca lifornia. Vertical and horizontal displacements are both predominantly anti symmetric with respect to the fault plane, consistent with predictions of l inear elastic models of deformation for a strike-slip fault. Some deviation s from symmetry apparent in the surface displacement data may result from c omplexity in the fault geometry.