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Last Updated in February 2018

International Collaborative Projects


Mapping project of the surface fault ruptures associated with the 2005 Earthquake, Pakistan
(Geological Survey of Japan,
Kyoto Univ and Hiroshima Technical Institute, Japan)

To provide a detailed record of a relatively rare thrust surface rupture and examine its active tectonic implications, field mapping of the surface rupture associated with the 2005 Mw 7.6 Kashmir earthquake was carried out. The results of the study showed that neither the main frontal thrust nor the main boundary thrust was responsible for the earthquake, but three active faults or fault segments within the Sub-Himalaya, collectively called the Balakot–Bagh fault, composed the causative fault. The earthquake recurrence interval and shortening rate on the Balakot–Bagh fault were estimated to be 1000–3300 yr and 1.4–4.1 mm/yr, respectively.

Geomorphology in and around the epicentral area of the 2005 Kashmir earthquake and the 2005 surface rupture trace