Starting April, JR West will leverage data from the N-net underwater observation network specifically developed for the Nankai Trough earthquake to enhance its early earthquake detection system for the Sanyo Shinkansen, allowing for a quicker response. The system is designed to detect initial seismic waves labeled 'P-waves' before the potentially damaging waves called 'S-waves' reach the train, thereby enabling an emergency stop up to 20 seconds sooner than previous capabilities.

This initiative builds upon an existing framework that was first introduced by JR West in 1996, following the Hanshin-Awaji earthquake, which allows trains to stop in anticipation of major seismic events. The data used for the system has evolved over the years; since 2010, it has included data from the Japan Meteorological Agency, and from 2019, the focus has shifted to utilizing data from the Disaster Prevention and Research Institute's coastal observation network, referred to as DONET.

The N-net system is crucial for rail safety, especially considering Japan's susceptibility to severe earthquakes, and represents an ongoing commitment to using advanced technology in disaster preparedness. As earthquake risks persist in the region, enhancing this early warning system serves as a proactive measure to ensure passenger safety and minimize the potential impacts of seismic disasters on rail infrastructure.