An earthquake warning system along the world's highest railway,
the Qinghai-Tibet Railway, is expected to go into
operation in August in southwest China's Tibet Autonomous Region.
The Nagqu seismic observation station, linked to 10 earthquake
monitors, is based about four kilometers northeast of Nagqu Town, a
stop on the railway 4,500 meters above sea level.
The station is part of the seismic warning network the central
government plans to complete by the end of 2010 at a cost of 13
million yuan (US$1.67 million) along the Qinghai-Tibet Railway,
said Cao Zhongquan, vice director of the Tibet Autonomous Regional
Cao said the Nagqu post was the first earthquake monitoring
station in Tibet capable of providing warnings along the
Construction of the post has been completed and it will begin
trial operation in August.
The system, capable of monitoring all earthquakes above three on
the Richter scale in China, would focus on northern Tibet to
provide advance warnings, said Chen Yaming, head of the seismic
The post would also closely monitor the Qinghai-Tibet Railway as
moderate quakes measuring up to six occurred most years in the area
the railway passed through, said Chen.
"About 5,000 people take the railway every day. At the Nagqu
post, we can better ensure their safety and minimize quake damage,"
Trains would stop automatically within minutes of the station
warning of an earthquake, and rescue teams would be dispatched. "We
cannot specify exactly how far in advance we can forecast an
earthquake, but if one is near, even a second can save lives," Chen
Before the new system, there was only one earthquake warning
station near Lhasa to cover the entire Tibet Autonomous Region.
Cao played down concerns over safety on the railway, saying the
engineers had taken the special conditions of the plateau into
consideration from the start, and many precautions had been
"No earthquake has been recorded along the Qinghai-Tibet Railway
during its first year," he said.
(Xinhua News Agency June 20, 2007)