Supervisors info:
Δρ. Ευθύμης Λέκκας, Καθηγητής Δυναμικής Τεκτονικής Εφαρμοσμένης Γεωλογίας & Διαχείρισης Φυσικών Καταστροφών (2004) στον Τομέα Δυναμικής Τεκτονικής Εφαρμοσμένης Γεωλογίας του τμήματος Γεωλογίας και Γεωπεριβάλλοντος του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών.
Δρ. Νίκος Βούλγαρης, Καθηγητής Σεισμολογίας και Τεχνικής Σεισμολογίας (2014) στον Τομέα Γεωφυσικής – Γεωθερμίας του Τμήματος Γεωλογίας και Γεωπεριβάλλοντος του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών.
Δρ. Καβύρης Γεώργιος, Επίκουρος Καθηγητής του τομέα Γεωφυσικής και Γεωθερμίας.
Summary:
The present study reflects the effects on the natural and structured environment of the 7.8W Gorkha earthquake on April 25, 2015 in the Kathmandu area of Nepal. In particular, the depiction begins with the imprint of the geographical and geological structure of the mountain range and the background of the Himalayas, the rocks and structures of the Tethys sequence and the general physiology of Nepal. Continuing, an analysis is made of the geological structures and geography of the wider area of Kathmandu, a historical review of the seismicity of the area as well as a broader analysis of its general seismicity. Then, a detailed description of the main seismic event is given, which is followed by the analysis of the effects on the natural environment of the Kathmandu region, which describes the effects of the earthquake on terrestrial slopes, soil responses, soil failures, landslides, avalanches, rockfalls, debris and liquefaction. Finally, the effects of the earthquake on the structured environment, the macroseismic scale EMS-98, the vulnerability of the area and the damage to the building structures as well as the monuments are described. In addition, examples of the application of the EMS-98 scale are given in various types of building constructions that were damaged during the main seismic event.
Keywords:
Impact, earthquake, Nepal, Kathmandu
