Site investigation of Arun Liquefied Natural Gas Project

The proposed site for this major complex was near Lkokseumawe in North Sumatra, Indonesia. From 1974-75, BCHF led a large-scale site investigation with a major aspect of the study being a review of the historical seismicity of the area. Records of past earthquakes were used to assess statistically return periods of earthquakes, and dynamic soil testing and computer analyses determined the likely modification of earthquake waves in the surface soil layers. Also, detailed analyses were carried out to assess the potential for liquefaction of the sandy foundation soils over the site during a major earthquake.