earthquake early-warning director of key laboratory of sichuan province, chengdu hi-tech institute for disaster reduction (disaster), the director of the Dr King Tun revealed today, it has developed the precursor to the built-in sensors earthquake early warning monitoring instrument, will start construction within three months before the earthquake forecast, at the time of the earthquake early warning, after the earthquake disaster studies of earthquake early warning system, is expected to promote the progress of earthquake prediction research.

King Tun said, hampering the progress of earthquake prediction is an important reason of lack of reliable earthquake precursor data. At present, China has been built including terrain change, the electromagnetic and subsurface fluid such as earthquake precursor observation stations nearly 100 kilometers, the average spacing such large station spacing, on the one hand, during earthquake gestation, gravity, around the source area to the change of physical properties such as electric and magnetic is difficult to be detected; On the other hand, a Watson Wchangeorganisation don't precursor instrument to detect abnormal changes, is difficult to confirm the changes caused by underground structure change or due to human disturbance.


& other; By high density of precursory observation instruments, can be observed before the earthquake, the focal area of ground tilt, gravity, the change of physical quantity, such as electric and magnetic, provide abundant analysis data for earthquake prediction, to resolve the because of precursory station spacing is too large, difficult to detect large area before the earthquake precursor anomalies, as well as the individual stations observed anomalies and hard connection problems, the earthquake can offer a lot of research data for earthquake prediction technology research, vigorously promote the progress and development of earthquake prediction technology. Throughout the &;

& other; Given effective earthquake early-warning system requires intensive deploy earthquake early warning monitoring instrument, instrument spacing is less than 20 km, if the precursor to the built-in sensors in these instruments, such as gravity acceleration sensor can be built in earthquake early warning systems, intensive earthquake precursor monitoring network is built. Throughout the &; According to wang pier, based on high density earthquake early warning monitoring network of earthquake precursory observation network, is based on the sixties and seventies of the last century & other; People throughout the &; Group of monitoring and measurement into & other; Instruments & throughout; The group control.
It is reported that in March of this year the institute has built the world's largest earthquake early warning system, covering 40 square kilometers, on the basis of this increase only makes the earthquake early warning and earthquake precursor function intensity quick report system cost increase is limited. & other; The construction of the new earthquake early warning system will make scientific planning, intensive earthquake early warning system and earthquake precursor monitoring system integration construction. Throughout the &;