Seismicity and state of stress in the central and southern Peruvian flat slab
نویسندگان
چکیده
a Department of Geological Sciences, University of North Carolina at Chapel Hill, 104 South Rd., Mitchell Hall, CB #3315, Chapel Hill, NC 27599-3315, USA b Department of Terrestrial Magnetism, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington, DC 20015-1305, USA c Department of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721, USA d Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, USA e Instituto Geofisico del Peru, Calle Badajo No. 169, Urb. Mayorazgo IV Etapa, Lima, Peru f El Observatorio San Calixto, Calle Indaburo 944, Casilla 12656, La Paz, Bolivia
منابع مشابه
Recurrent seismicity in Rajasthan State in the tectonically stable NW Indian Craton
Indian peninsular region comprises several Archean cratonic blocks (Dharwar, Bastar, Singhbhum, Aravalli – Bundelkhand), bordered by Proterozoic mobile belts. Therefore, this region is considered as tectonically stable and designated as the least vulnerable region to earthquake hazard except the still active Central Indian Tectonic Zone (CITZ). The latter is a major suture between southern and ...
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The dynamics of flat subduction, particularly the interaction between a flat slab and the overriding plate, are poorly understood. Here we study the (seismically) anisotropic properties and deformational regime of the mantle directly above the Peruvian flat slab. We analyze shear wave splitting from 370 local S events at 49 stations across southern Peru. We find that the mantle above the flat s...
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