Basics of computational geophysics / Основы вычислительной геофизики

Kashmir valley is a northwest-southeast directed, Neogene-Quaternary tectonic basin in the NW Himalaya. Due to the active tectonic set-up in and around this basin, this region has been struck by various destructive earthquakes (Ambraseys and Douglas, 2004). The October 8, 2005 Kashmir earthquake (Mw 7.6) was the most recent earthquake that shook the region. This earthquake caused paramount damage to life and property (Sana and Nath, 2017). Here the synthetic ground motions of this earthquake are presented at engineering bedrock and at the surface in the Kashmir basin. Due to the lack of the strong motion data, the stochastic finite fault element method with dynamic corner frequency was used to simulate the synthetic ground motions at the bedrock (Motezedin and Atkinson, 2005). The ground motions at bedrock were later transmitted through the geotechnical standard penetration test boreholes spread across the Kashmir basin to the surface (Sana et al., 2019). The Kashmir Himalaya is one of the most tectonically active convergent boundary zones between Indian and Eurasian plate in the NW Himalayas. The prevailing seismotectonics of this terrain is discussed in Sana and Nath (2016b). The geodetic studies have revealed that the India-Eurasia convergence rates are up to 20 mm/year (Mohadjer et al., 2010). The recentgeodetic study shows that the convergence rates in the Kashmir Himalaya is of the order of 13 (61) mm/year (Kundu et al., 2014). <...>