摘要
东方震群历时273天,共发生ML≥1.0级地震557次,最大震级为4.5级。介绍了对该震群跟踪分析与预报的过程和方法,震群各活动阶段的判断以及相应的地震对策依据。
The Dongfang earthquake swarm lasted 273 days in that period 557 earthquakes(ML≥1)occurred and the maximum magmitude of them was ML=4.5.In this paper,the ways of tracing analysis and prediction of earthquakes,judgement of each seismicity stage and the basis of earthquake countermeasure are described.