Document Type
Article
Department or Administrative Unit
Geological Sciences
Publication Date
3-15-1997
Abstract
The October, 1995 Mw 8.0 Jalisco subduction earthquake has provided a thorough geodetic observation of the coseismic subduction process. An 11 station regional GPS network located directly onshore of the rupture demonstrates consistent vertical subsidence verified by tide gauge data and southwest-directed extension, with measured displacements reaching 1 meter. Unusually shallow and non-uniform faulting is required to explain the displacements. We determine that up to 5 meters of slip occurred within the upper 15 km of the thrust fault zone and 2 meters possibly as shallow as 8 km, and that slip was likely distributed in two main patches. The paucity of continental sediments in this subduction zone could be responsible for the anomalously shallow faulting.
Recommended Citation
Melbourne, T., et al. (1997). The geodetic signature of the M8.0 Oct. 9,1995, Jalisco subduction earthquake. Geophysical Research Letters, 24(6), 715-718. http://dx.doi.org/10.1029/97GL00370
Journal
Geophysical Research Letters
Rights
Copyright © 1997 the American Geophysical Union
Comments
This article was originally published in Geophysical Research Letters. The full-text article from the publisher can be found here.