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《Recent Developments in World Seismology》 2009-01
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The Necessity of Building National Strain-Observation Network from the Strain Abnormality Before Wenchuan Earthquake

Chi Shunliang,Chi Yi,Deng Tao,Liao Chengwang,Tang Xiaolin and Chi Liang(Earthquake Research Institute,CEA,Wuhan 430071,China)  
In 2004,China's National Digital Network of Earthquake Observation planned to deploy 40 YRY-4 Four Component Strainmeter. Clear strain anomaly before 2008.5.12 was observed at YRY-4 strain stations close to Wenchuan. Another anomaly occurred before the Lihui ML 6.1 earthquake on Aug.30,2008 and a prediction of the quake made by this anomaly was successful. Thus it is very important to speed up a nation wide dense network of strain observation.
【CateGory Index】: P315.727
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