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Rodríguez Pascua, Miguel Ángel
Benavente Escobar, Carlos Lenin
Rosell Guevara, Lorena Nicole
Grützner, Christoph
Audin, Laurence
Walker, Richard
García Fernández Baca, Briant
Aguirre Alegre, Enoch Matthew
Rodríguez-Pascua, M.; Benavente, C.; Rosell, L.; Grützner, C.; Audin, L., et al. (2019). Did earthquakes strike Machu Picchu?. Journal of Seismology, 1-17. Doi: 10.1007/s10950-019-09877-4
The Historic Sanctuary of Machu Picchu (Cusco, Peru) is one of the most important archaeological monuments in Peru and worldwide. Machu Picchu is classified as a UNESCO World Heritage site and at risk from climatic change. However, the seismic centennial history of Peru reports large earthquakes generated both along the subduction zone (Mw8) and on active crustal faults along the Andean Cordillera (Mw7). It is therefore important to know if Machu Picchu is located in an area of seismic hazard and then to take measures to mitigate potential seismic hazards. Due to the short historical earthquake catalogue (< 500 years) and the absence of significant recent instrumental seismicity in the site’s vicinity (radius of < 30 km), our knowledge about the seismic hazard in Machu Picchu is limited. The earthquakes of 1650 and 1950 affected Cusco city and surrounding areas, but without damage descriptions inMachu Picchu (80 km away) (Silgado Ferro 1978). In this study, we make the first attempt to use the analysis of earthquake archaeological effects (EAEs) and their differentiation fromthe effects generated by slope movements (creep) to investigate the past occurrence of strong earthquakes at the site. The application of geological structural analysis to the deformations observed in Machu Picchu shows two directions of the mean ground movement: N020° E and N110° E. Two earthquakes that affected Machu Picchu during its construction generated these directions. This kind of data should be used in the future to protect this important archaeological site.
Springer Nature
Journal of Seismology, 2019, pp. 1-17
Instituto Geológico, Minero y Metalúrgico – INGEMMET
Repositorio Institucional INGEMMET
Sitio arqueológico
Geología histórica
Machu Picchu
Did earthquakes strike Machu Picchu?
Journal of Seismology
Peer reviewed

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