This research was funded under the key project, Study on Techniques of Medium and Short-term Earthquake Prediction for Tianjin and Its Nearby Areas (07ZCGYSF03100) , of the Science & Technology Pillar
<正>1 SURVEY OF GLOBAL SEISMICITY IN 2011A total of 26 strong earthquakes with MS ≥ 7. 0 occurred in 2011 throughout the worldaccording to the China Seismic Ne