Earthquake Early Warning & Structural Seismic Monitoring for High-Speed Rail Lines

During an earthquake, seismic waves travel at different speeds and reach seismic recording stations in a certain sequence. First, the P-wave, traveling at a speed ranging between 5.0 and 7.4 km/s, arrives, followed by the S-wave at a speed of 3.0 to 4.0 km/s. The arrival time difference between P and S waves at a station increases as the distance from the earthquake focus increases. This increase provides valuable time in terms of Early Warning (EW).

In addition, the speed of digital data communication between earthquake stations and the main data center is also of great importance. The SENTEZ Earthquake Early Warning System helps minimize the severe damage and losses that may occur in a region during and after an earthquake by issuing warnings a few seconds to tens of seconds before the arrival of the destructive S-wave of a damaging earthquake.

Depending on the location of the earthquake epicenter, this system enables the train control center to take actions such as slowing down or stopping the train several seconds to tens of seconds in advance.

Thanks to the advanced technologies it employs, the SENTEZ EEW System provides real-time recording of ground motions and ensures that this information is evaluated in the shortest possible time so that the resulting outputs can be used by different systems.

A reliable Earthquake Early Warning System can be established by automatically transmitting the occurrence of an earthquake capable of causing damage to the high-speed rail line closest to the source and to other engineering structures along the route. In this way, the SENTEZ EEW and SHM System plays an effective role in preventing possible damage on high-speed rail lines.

The Earthquake Warning and Structural Health Monitoring System developed by SENTEZ for high-speed rail lines is an active warning and control mechanism used to ensure the safe slowing down and/or stopping of the train during an earthquake and to maintain passenger safety.

This system also generates post-earthquake damage maps along the route, enabling operations to be carried out more effectively and safely.

During the early warning phase, earthquake parameters are calculated as quickly as possible within the seismic network in use. The detected strong ground motion works in coordination with the railway network system in order to generate the necessary alarm signal.