摘要
龙门山地震带毗邻平原地区和大都市，多以中等地震活动方式释放应变能。对龙门山地震带地震活动特点研究之后，认真探讨了用于该带地震预报研究的震兆标志。其指标和标志是：1．频度和最大震级分形Rn、Rm≥|±1．5|;2．算法复杂性C(n)≥|±σn-1|；3．η≥|±σn-1|；4．max持续低于长期的max值；5．累积滑动频度∑N持续增高。
Longmenshan seismic zone lies in the plain area and a big city -Chendu City, and it releases strain energy in medium earthquake activities. After studying the seismic active charateristics in the zone, the author analyses the precursory indexes to predict earthquakes in the zone, and the indexes are: 1. Frequence and maximum magnitude fractal are Rn、 Rm≥ |±1. 5|; 2. Algorithm complication is C(n)≥| value is lower in duration time than M'max of longterm ; 5. Cumulative slip frequency ∑N is inereased in duratios time.
出处
《高原地震》
1997年第2期27-32,共6页
Plateau Earthquake Research
关键词
应变能
地震预报
分形
龙门山地震带
Strain energy Earthquake prediction Fractal Longmenshan seismic zone
