Chinanews, Lhasa, July 20 - The highest manned seismological station was put in trial operation in the northern part of Tibet Autonomous Region, to monitor the small-scale earthquakes there. The station was also built as an important supply to the national earthquake monitoring network.The station was first put in use during the 9th Five-Year Plan Period (1995-2000), but at that time it had no proper instrument to monitor small-scale earthquakes, which are common in northern Tibet and along the boarder between Tibet and Xinjiang and the border between Tibet and Qinghai.Thus the station was upgraded to its current scale. Now it can sense very small earthquakes (less than 1 on the Richter scale) that occur within the range of 250 km. It can even record the vibration caused by a moving car.So far, the station is in normal operation, and has recorded all the earthquakes that had occurred.