Due to website renewal, the title was changed "JAMSTEC Seismic Survey Database" from "CRUSTAL STRUCTURAL DATABASE SITE" on July 17, 2020.

This is a site of crustal structural data based on the research programs of Frontier Research Program of Subduction Dymamics (1997-2001), the first phase of IFREE (Institute for Frontier Research on Earth Evolution, 2002-2004), the second phase of IFREE (Institute For Research on Earth Evolution, 2004-2009), the third phase of IFREE (Institute For Research on Earth Evolution, 2009-2014), CEAT (Research and Development Center for Earthquake and Tsunami, 2014-2019), and IMG (Research Institute for Marine Geodynamics, 2019-). Categories of accessible data are Multi-Channel Seismic reflection data (MCS), refraction and wide-angle seismic reflection data by Ocean Bottom Seismograph. Due to website renewal, the title was changed "JAMSTEC Seismic Survey Database" from "CRUSTAL STRUCTURAL DATABASE SITE" on July 17, 2020.