| 中国华北地区强震时间韵律和活动特征 |
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| 引用本文： | 高立新,戴勇.中国华北地区强震时间韵律和活动特征[J].防灾减灾学报,2014(4):1-7. |
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| 作者姓名： | 高立新 戴勇 |
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| 作者单位： | 内蒙古自治区地震局,内蒙古 呼和浩特,010010 |
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| 基金项目： | 中国地震局地震行业科研专项中国综合地球物理场观测-鄂尔多斯地块周缘地区 |
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| 摘 要： | 公元1000年以来，中国华北地区强震存在4个活动期，本文以华北地区为研究区，分析了华北地区4个活动期的地震主体活动区，第3、第4活动期的时间韵律特征，第4活动期的期幕划分的基础上，对第4活动期的地震活动特征进行了分析。分析结果表明，华北地区第4活动期主体活动区位于河套地震带和河北平原地震带，华北地区第3和第4活动期分别具有54年周期、42年周期的时间韵律特征以及具有起始→加速→高潮→减速→结束的5阶段特征，第4活动期已经历了5个活跃幕，未来几年华北地区或将迎来第6活跃幕。
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| 关 键 词： | 华北地区 活动期 活跃幕 平静幕 强震 特征分析 |
Research on the Time Rhythm and Activity Characteristics of Strong Earthquake in North China |
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| GAO Li-xin,DAI Yong.Research on the Time Rhythm and Activity Characteristics of Strong Earthquake in North China[J].Seismological Research of Northeast China,2014(4):1-7. |
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| Authors: | GAO Li-xin DAI Yong |
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| Institution: | (Earthquake Administration of Inner Mongolia Autonomous Region, Inner Mongolia Hohhot 010010, China ) |
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| Abstract: | There are 4 activity period of strong earthquake in north china from A.D. 1000,The North China as the study area, We have analyzed the seismic main active area of the fourth active period and the time rhythm characteristics of the third and the fouth activity period in North China, The stage curtain of the fourth active stage is divided into,Based on the result that we have analyzed the characteristics of seismic activity in the fourth active period. The analysis results show that the main activity areaof the fourth active period is located in the heTao seismic belt and the hebei plain seismic zone in North China.The third and the fourth period in North China has the time rhythm characteristics of 54 years cycle and 42 years cycles,as well as the 5 stages characteristics including start →acceleration →climax → reduce→ end, The fourth active period has experienced 6 active curtains. |
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| Keywords: | North China activity period activity curtain calm curtain strong earthquake characteristics research |
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