Experts said a magnitude 7 earthquake in China in recent years, risk of abnormal seismic activity

(Reporter Zhang Jing ) in the last two weeks, a spate of domestic 5 earthquakes . China Earthquake Networks Center , chief forecaster of the original seismic Sun in an interview yesterday, who pointed out that China's current level of seismic activity is not normal, still concerned about the future of about magnitude 7 earthquake risk exists .
1 12, the South Yellow Sea 5.0 earthquake occurred , this is the third in 2011 5 earthquakes . New Year's day, Kirgiz Autonomous Prefecture of Xinjiang Wuqia County, 5.1 earthquake , 8, Jilin Province and Hunchun 5.6 earthquake occurred .
SUN Shi 's analysis, Yushu April 14 last year after the earthquake , seismic activity in China is not a normal , relatively speaking .
This was reflected in our country is always about the earthquake magnitude 5 , which is not normal. SUN Shi pointed out that there is a ratio between the size of the earthquake , the occurrence of a major earthquake should be accompanied by 3 to 4 times 6 earthquake , about 10 5 earthquakes .
SUN Shi said that after the earthquake from the Yushu , China's medium-intensity earthquakes in the intensity distribution is not normal . Into which emerged after 2011, several earthquakes, is still five or so, the magnitude is still this level.
According to his analysis, the earthquake in China since 2008 after the seismic activity is also more active in the period , compared to the phase of the unusual seismic activity , the next few years , or about 7 to pay attention to earthquake risk.