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.

Publication date

February 2018

Publisher

Royal Astronomical Society

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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