Revisiting the 1992 Landers earthquake: a Bayesian exploration of co-seismic slip and off-fault damage

Gombert, B.
Duputel, Z.
Jolivet, R.
Doubre, C.
Rivera, L.
Simons, M.

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Publication date

February 2018

Publisher

Royal Astronomical Society

Language

English

Abstract

Existing models for the distribution of subsurface fault slip associated with the 1992 Landers, CA, earthquake (M_w = 7.3) show significant dissimilarities. In particular, they exhibit different amounts of slip at shallow depths (<5 km). These discrepancies can be primarily attributed to the ill-posed nature of the slip inversion problem and to the use of physically unjustifiable smoothing or regularization constraints. In this study, we propose a new coseismic model obtained from the joint inversion of multiple observations in a relatively unregularized and fully Bayesian framework. We use a comprehensive data set including GPS, terrestrial geodesy, multiple SAR interferograms and co-seismic offsets from correlation of aerial images. These...

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Revisiting the 1992 Landers earthquake: a Bayesian exploration of co-seismic slip and off-fault damage

Abstract

Extracted data

Revisiting the 1992 Landers earthquake: a Bayesian exploration of co-seismic slip and off-fault damage

Abstract

Extracted data

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