Probabilistic seismic hazard assessment (PSHA) with local site effects for existing and new structures in Kazakhstan

Collaborative Research Program for 2022-2024

The proposed project aims to evaluate the hazard and risk posed by earthquakes to structures in the southern and south-eastern Kazakhstan. The hazard and risk assessment will integrate probabilistic seismic hazard analysis (PSHA) considering local site effects (deep soil deposits) with structural dynamic analysis through a multi-disciplinary approach including seismology and civil engineering. The anticipated outcomes of the project are to (1) conduct seismic microzonation; (2) develop depth-dependent site coefficients (Fa, Fv)and probabilistic seismic hazard maps; (3) perform liquefaction potential assessment; and (4) assess seismic vulnerability for structures in the southern and south-eastern Kazakhstan. Based on the risk assessment results, recommendations for the design and retrofitting of new and existing structures will be proposed to government authorities who deal with geotechnical/structural design and seismic risk reduction.