West Japan Railway Company (JR West) has introduced observational data from the Nankai Trough Seafloor Observation Network for Earthquakes and Tsunamis (N-net) into the Sanyo Shinkansen early earthquake detection and warning system as of April 1.
On the Sanyo Shinkansen line in western Japan, JR West operates an early earthquake detection and warning system that detects earthquakes at an early stage and stops Shinkansen trains. Based on an agreement with the National Research Institute for Earth Science and Disaster Resilience (NIED), observation data from N-net, which has been installed from off the coast of Kochi Prefecture to the Hyuga-nada area in the presumed focal region of a potential Nankai Trough earthquake, will be incorporated into the Sanyo Shinkansen early earthquake detection and warning system with the cooperation of the Railway Technical Research Institute.
As a result, for earthquakes occurring from offshore Shikoku to the Hyuga-nada area in Japan, it is expected that earthquakes can be detected up to about 20 seconds earlier than with the conventional system, allowing an earlier decision to stop trains. This is the first case in which N-net has been directly utilized for earthquake disaster prevention measures by a railway operator, and JR West says it will contribute to improving the safety of train operations on the Sanyo Shinkansen during earthquakes.
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