oceanic crust continental margin 8 subduction 6 Andes 4 Chile 4 Continental margin 4 South America 4 Structural geology 4 earthquake catalogue 4 earthquake event 4 earthquake magnitude 4 fold and thrust belt 4 fracture zone 4 gravity anomaly 4 seismicity 4 slip 4 tectonic evolution 4 terrane 4 Alleghanian orogeny 2 Anacardium occidentale 2 Argentina 2 Cenozoic 2 Collision 2 Composition of the continental crust 2 Composition of the continental crusts 2 Composition of the oceanic crust 2 Composition of the oceanic crusts 2 Continental margins 2 Continental margins: convergent 2 Cratons 2