Marmara Sea Fiber Optic Earthquake Early Warning System Project (FOTDES)

The Fiber Optic Distributed Acoustic Sensing-Based Early Warning and Monitoring System (FOTDES) is being developed to address the potential earthquake threat posed to the Marmara Sea, representing an important technology for the protection of critical infrastructure in Istanbul and its surroundings. The project aims to utilize existing fiber optic cables located on the seabed of the Marmara Sea, running between Ambarlı and Pendik, as early warning sensors.

This initiative aims to achieve an early warning time of 3 to 30 seconds, depending on the earthquake’s epicenter, should a Marmara earthquake occur. This time frame is vital for critical infrastructures and transportation systems. The completion of the project is expected by the end of 2024, with plans to integrate artificial intelligence and machine learning processes.

The FOTDES system is designed to detect hazardous intensity earthquakes using fiber optic cables extending across the seabed and land, employing Distributed Acoustic Sensing (DAS) technology. This component is implemented by FOTAS, utilizing the S-50 model. By doing so, the system enables the early detection of seismic waves during significant events such as a major Marmara earthquake, allowing for timely precautions to be taken regarding critical infrastructure and transportation systems.

The development of this system will facilitate the timely shut-off of gas in the İGDAŞ gas distribution network according to the earthquake’s intensity, thereby helping to prevent secondary disasters (such as fires and explosions). Additionally, it aims to use early warning signals in areas such as metro, train, factory, and aircraft management, preventing loss of life and property.

This technology is considered a crucial step in preparing for the anticipated major Marmara earthquake, offering significant opportunities to mitigate its damage and save lives through the development of the early warning system.