Soil geology : As it is largely built on man-made surfaces , Tianjin Port ’s engineering geology is fairly regular : Seismological Conditions : The area of Tianjin is very seismically active . The 1976 Tangshan earthquake affected the harbor and caused serious damage to its installations . The Port 's current design specifications are to resist earthquakes of intensity 7 , to a basic design Peak ground acceleration of 0.15 g
1976 Tangshan earthquake
1976 Tangshan earthquake
Layout of the Port of Tianjin