Analysis of Small Earthquake Activities before Medium-strong Earthquakes in Northeast China

• 作 者: Li Yongzhen Jiang Jinzheng Lia
• 机 构: EarthquakeAdministrationofLiaoningProvince,TielingSeismicStationofLiaoningProvince
• 出 处: 中国地震研究：英文版
• 发表日期: 2013年3期
• 关键词: 中国东北地区 中强地震 小震活动 地震活动 异常指标 变化规律 地震前 Mgt Medium-strong earthquake Northeast Chin
• 基金项目: Received on March 23, 2013, and revised on July 10, 2013. This project is sponsored by the 2013 Annual Earthquake Monitory, Forecasting and Research in Seismic Stations Fund, CEA.

13 earthquakes with M≥5.0 have been recorded in the northeast region of China since1970,among which eight medium-strong earthquakes are independent in space and time.Studies of seismicity before these eight medium-strong earthquakes show that small earthq