Global permanent deformations triggered by the Sumatra earthquake
Geophysics
2007-05-23 v1
Abstract
The giant Sumatra-Andaman earthquake of December 26 2004 caused permanent deformations effects in a region of previously never observed extension. The GPS data from the world wide network of permanent IGS sites show significant coseismic displacements in an area exceeding 107 km^2. The effects of the permanent residual deformation field could be detected as far as Australia, the Phillipines and Japanese archipelagos, and, on the West, as far as the indian continent. The synthetic simulations of the coseismic displacement field obtained by means of a spherical model support the hypothesis that a considerable amount of energy has been released aseismically.
Keywords
Cite
@article{arxiv.physics/0506003,
title = {Global permanent deformations triggered by the Sumatra earthquake},
author = {E. Boschi and E. Casarotti and R. Devoti and D. Melini and A. Piersanti and G. Pietrantonio and F. Riguzzi},
journal= {arXiv preprint arXiv:physics/0506003},
year = {2007}
}
Comments
10 pages, submitted as a Science Brevia communication