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地震 ›› 2004, Vol. 24 ›› Issue (3): 15-20.

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中国大陆浅源强震分布与地球自转速率变化的关系

傅征祥1, 邵辉成2,3, 丁香1   

  1. 1.中国地震局分析预报中心, 北京 100036;
    2.陕西省地震局, 陕西 西安 710068;
    3.西北工业大学工程力学系, 陕西 西安 710072
  • 出版日期:2004-07-31 发布日期:2021-11-29
  • 作者简介:傅征祥(1941-), 男, 上海市人,研究员, 主要从事地震活动和地震预测等研究。
  • 基金资助:
    “十五”中国地震局重点科研项目(100501-05); 地震科学联合基金项目(104016; 304065)

Relation between distribution of shallow strong earthquake in china's continent and the earth rotation rate variation

FU Zheng-xiang1, SHAO Hui-cheng2,3, DING Xiang1   

  1. 1. Center for Analysis and Prediction; CEA; Beijing 100036;
    2. Earthquake Administration of Shanxi Province, Xi'an 710068;
    3. department of Mechanical Engineering, Xi'an 710072, China
  • Online:2004-07-31 Published:2021-11-29

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摘要： 考查了1900～2001年中国大陆不同活动地块浅源强震分布与地球自转速率变化的关系, 并讨论将其应用在地震趋势预测中的问题。 研究结果表明, 大陆西部的天山、 祁连-柴达木、 羌塘-拉萨及川滇地块的强震活动(MS≥7.0)和大陆东部的中朝-鲁东黄海地块和华南地块东边界(东南沿海地震带)东半段中的强震活动(MS≥6.0), 大多数(70%以上)发生在地球自转加快的年份中; 大陆西部滇东-滇西地块的强震活动(MS≥7.0), 以及大陆东部中蒙-华北平原地块和华南地块东边界(东南沿海地震带)的西半段强震活动(MS≥6.0), 大多数(67%以上)发生在地球自转减慢的年份中。 并且讨论了地球自转速率变化在地震预报中可能作用的R值评分。

关键词: 活动地块, 浅源强震, 地球自转速率, 中国大陆

Abstract: The relation between the distribution of shallow strong earthquakes in China's continent from 1900 to 2001 and the rate variation of earth rotation has been investigated in this paper. The results show that most of the strong earthquakes (M≥7.0) in Tianshan, Qilian-chaidamu, Qiantang-Lasa, Chuandian block of western China and most of the strong earthquakes (M≥6.0) in Zhongchao-Ludong, east section of Huanan block of Eastern China occurred in the years with the earth rotation acceleration; most of the strong earthquakes (M≥7.0) in Diannan-Dianxi block of Western China and most of the strong earthquake (M≥6.0) in Zhongmong Huabei, west section of Huanan block of Eastern China occurred in the years with the earth rotation deceleration. And the application of the earth rotation rate variation of earthquake prediction is discussed.

Key words: Active block, Shallow earthquake, Earth rotation rate, China's continent

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