Abstract
Afghanistan is situated close to the area where the Indian, Arabian, and Eurasian tectonic plates converge. The consequent seismic hazard causes the region to be repeatedly struck by major earthquakes. However, there is a lack of seismic instrumentation in the region, and only limited historical ground motions are available thus presenting a challenge for structural designers. Due to the absence of information and a database of ground motions, buildings in the region are often built without guidance from seismic codes. Consequently, the earthquakes in the region continue to cause enormous destruction to the built environment of the region. On 22 June 2022, the southeastern region of the country was struck by a major Mw 6.2 earthquake having a maximum modified Mercalli intensity of IX. In this study, synthetic ground motions are obtained using the modified stochastic finite fault methodology for Khost and Kabul cities in the region. The results from simulations obtained in the current study are observed to compare well with the available records of the earthquake. The obtained findings are reported as simulated accelerograms, acceleration response spectra, and Fourier response spectra, which will be immensely beneficial in understanding the behavior of the built environment of the region.
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Chenna, R., Patnala, N., Vemuri, J.P. et al. Insights on the June 21, 2022, Khost earthquake, Afghanistan. Sādhanā 48, 144 (2023). https://doi.org/10.1007/s12046-023-02215-y
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DOI: https://doi.org/10.1007/s12046-023-02215-y