Technicians deploy a tsunami detection buoy into the water. (file photo)

The Manila Trench is associated with frequent earthquakes in the Pacific Ocean. Because of this, China has deployed two sets of tsunami detection buoys along the Trench for the first time, marking the completion of the country's tsunami monitoring buoys network in South China Sea, Science and Technology Daily reported on July 5.

The buoys are equipped with new technology, which has significantly improved their accuracy. They can detect as little as 5 millimeters in sea level rise caused by tsunamis. Once there is a tsunami earthquake, the subtle fluctuations are detected and that data is sent via satellites to the South China Sea branch of the China's State Oceanic Administration and the National Tsunami Early Warning Center.

The detection network is expected to provide a two-hour early warning for residents in China's coastal areas and countries in the South China Sea.

The two sets of tsunami detection buoys is an important component of China's tsunami monitoring and early warning system.