• 责任者：Chen Yuhua (Earthquake Administration of Qinghai Province ; Xining 810000 ; China) ; Yao Jiajun
• 刊名：Journal of Seismological Research
• 出版年：2013
• 卷期：36(4)
• 关键词：大震 ; great earthquakes ; 地震前兆 ; precursor ; 中国 ; China
• 页码：p.418-426
• 图表：7 illus., 1 table, 21 refs.
• 分类号：0500
• issnNo：ISSN1000-0666
• isbnNo：CN53-1062/P

     By studying the evolution process of seismic gaps before M≥7.0 earthquakes occurred in the western part of China mainland from 1970 to 2010,it was suggested that the spatial distribution evolution process of moderate and strong earthquakes showed relatively regular before M≥7.0 earthquakes,which showed that M≥6,M≥5and ML ≥4 earthquakes gradually appeared very quiet in a large area at the same tectonic region,forming seismic gaps with different magnitude intervals.The evolution process of such patterns is the guidance of the pregnancy zone of M≥7.0 earthquakes,and has an important effect on the medium-term prediction on the M≥7.0earthquakes.