Ocean Drilling Program (ODP) Site 1149 is located on the Pacific plate ~100 km east of the Izu-Bonin Trench within the region known as the Nadezhda Basin (Fig. F1A). The primary objective of drilling at this site was to determine the geochemical input to the Izu-Bonin subduction system (Shipboard Scientific Party, 2000b). Site 1149 is particularly important because no other drilling attempts within 1000 km have continuously cored the entire sedimentary sequence and uppermost oceanic crust, the most proximal being Deep Sea Drilling Project (DSDP) Sites 303 and 304, 1600 km to the northeast (Fig. F1A). Single-channel seismic (SCS) profiles obtained across Site 1149 during Leg 185 and numerous regional seismic profiles throughout the area provide the means for extending the results from Site 1149 to basinwide scales (1000 km). Such regional-scale seismic stratigraphy forms the foundation for investigations of the sedimentary and volcanic history of a significant area of the northwest Pacific seaward of the Izu-Bonin Trench. The objective of this paper is to provide the correlation between the physical stratigraphy at Site 1149 and local SCS data utilizing a synthetic seismogram constructed from both downhole logging and shipboard physical properties data.