The system helped stop the Metro services after the tremors hit the national capital last month.
Developed byCSIR-Central Scientific Instruments Organisation (CSIR-CSIO), Chandigarh, the system can sense, record the event and generate SMS to the concerned action points, in real time.
The Metro authorities had asked the CSIO to detect quakes measuring beyond 3 on the Richter Scale.
"The information has been integrated with the system and was also passed on to designated officers. Within three seconds orders can be given to stop the Metro," said R K Sinha, Director of CSIO.
He, however, refused to call it an earthquake early warning system as it works only after the tremor, following which it senses the waves.
The CSIO has installed five sensors across different locations of Metro---Mundka, Botanical Garden, Huda City Centre, Metro Bhawan and Faridabad--- comprising seismic warning systems with LAN connectivity with the DMRC network for generation of alarm signal on major earthquake.
It is in operation since August 2015, but was validated last month.
"The sensor also has a highly sensitive pendulum. So anytime there is a vibration inside the earth, it starts oscillating. They send signals about any seismic activity and communicate it to the central control located at Operation Control Centre (DMRC-OCC) regarding potential earthquake incidence.
He said, in countries like Japan the Metro services stop automatically when it receives such signals.