Geodynamic Processes in the Andes of Central Chile and Argentina
This Special Publication arises from the UNESCO-sponsored IGCP 586-Y project ‘The tectonics and geomorphology of the Andes (32°–34°S): interplay between short-term and long-term processes’. It includes state-of-the-art reviews and original articles from a multidisciplinary perspective that investigate the complex interactions of tectonics and surface processes in the subduction-related orogen of the Andes of central Chile and Argentina (c. 27°–39°S). It aims to improve our understanding of tectonic and landscape evolution of the Andean range at different time scales, as well as the mutual relationship between internal and external mechanisms in Cenozoic deformation, mountain building, topographic evolution, basin development and mega-landslides occurrence across the flat slab to normal subduction segments. The geodynamic processes of the Andes of central Chile and Argentina are analysed from a number of subdisciplines of the Earth sciences, including tectonics, petrology, geophysics, geochemistry, structural geology, geomorphology, engineering geology, stratigraphy and sedimentology.
Historical damage and earthquake environmental effects related to shallow intraplate seismicity of central western Argentina
Published:January 01, 2015
Stella Maris Moreiras, María Solange Páez, 2015. "Historical damage and earthquake environmental effects related to shallow intraplate seismicity of central western Argentina", Geodynamic Processes in the Andes of Central Chile and Argentina, S. A. Sepúlveda, L. B. Giambiagi, S. M. Moreiras, L. Pinto, M. Tunik, G. D. Hoke, M. Farías
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Central western Argentina is identified as the most hazardous seismic zone in the country. Historical earthquakes with magnitudes greater than Ms>6.0 frequently occur in this territory and are associated with the subduction of the Nazca plate. However, seismic hazards have not been fully assessed in this region. No secondary seismic effects of a potential earthquake with destructive consequences have been considered, nor has the existence of shallow Quaternary blind faults been identified by seismic surveys. Neotectonic studies performed up to the present describe only those Quaternary faults with some surficial expression. Lacking proper hazard assessment limits strategies...