Port and harbor facilities have experienced serious disasters from earthquakes over the world (Green et al., 2011). In Korea, seismic design for port facilities has been carried out since merely a dozen years ago, but countermeasures based on earthquake monitoring systems in ports have been rarely established. To institute a systematic strategy against earthquake for port facilities, it is important to obtain accurate data on ground and construct an earthquake response strategy system that can minimize seismic hazards.sed on earthquake monitoring systems in ports have been rarely established. To institute a systematic strategy against earthquake for port facilities, it is important to obtain accurate data on ground and construct an earthquake response strategy system that can minimize seismic hazards.