| 地震活动增强方式及其复杂性 |
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| 引用本文： | 王炜.地震活动增强方式及其复杂性[J].西北地震学报,2000,22(4):376-381. |
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| 作者姓名： | 王炜 |
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| 作者单位： | 上海市地震局,上海,200062 |
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| 基金项目： | 中国地震局“九五”攻关项目!(95 0 4) |
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| 摘 要： | 分析了地震活动增强特征参数W1与相应其它参数的关系以及在一些6级左右地震前W1值的动态图像变化。结果表明中强以上地震前的地震活动“增强”通常表现为在强度上的增高、时间和空间上的丛集以及强度增高与时空丛集同时出现3种方式。一些6级左右地震前W1值动态图像变化表明地震过程往往表现为多应力集中区相互作用和影响的演变过程。
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| 关 键 词： | 地震活动异常增强 地震孕育 应力集中 ANN |
| 收稿时间： | 1999/8/31 0:00:00 |
THE FORM OF SEISMICITY INCREMENT AND ITS COMPLEXITY |
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| WANG Wei.THE FORM OF SEISMICITY INCREMENT AND ITS COMPLEXITY[J].Northwestern Seismological Journal,2000,22(4):376-381. |
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| Authors: | WANG Wei |
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| Affiliation: | Seismological Bureau of Shanghai City, Shanghai 200062 |
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| Abstract: | The relationship between seismicity enhancement parameter W 1 and corresponding seismicity parameters, and their variation before some earthquakes about M S6.0 are analysed in this paper.The results show that there are three forms on enhancement of seismicity before moderate or strong earthquakes,the first is the enhancement on magnitude,the second is the temporal and spatial cluster of seismicity,the third appears as the first and the second forms concurrently.The variation of dynamic pattern of W 1 value before some earthquakes about M S6.0 shows that seismogenic process is an evolution process of interaction of many stress concentration zones. |
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| Keywords: | Anomalous increament of seismicity Earthquake preparation Stress concentration Artificial neural network |
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