| 日本地震活动与潮汐相关性统计研究 |
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| 引用本文： | 张涵,解朝娣,闫如玉,李祥,刘本玉,于海英.日本地震活动与潮汐相关性统计研究[J].大地测量与地球动力学,2019,39(11):1122-1126. |
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| 作者姓名： | 张涵 解朝娣 闫如玉 李祥 刘本玉 于海英 |
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| 作者单位： | 云南大学资源环境与地球科学学院,昆明市翠湖北路2号,650091;上海市地震局,上海市兰溪路87号,200062 |
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| 基金项目： | 国家自然科学基金;同济大学海洋地质国家重点实验室开放基金 |
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| 摘 要： | 选取日本及邻区作为研究区域，对其进行子区域的划分。基于日月引起的起潮力，通过Schuster检验计算出每个子区域的p值，在此基础上对满足p<5%的子区域建立Schuster谱，判断该地区的地震活动率是否存在周期性变化，进而对日本的地震活动与潮汐应力的相关性进行研究。结果显示，在划分的75个子区域中，有22个子区域满足p＜5%，且其中2个子区域的Schuster谱显示出明显的0.5 d潮周期，说明这些地区的地震活动在一定程度上受到潮汐触发作用的影响。
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| 关 键 词： | 潮汐触发 日本地震 Schuster检验 Schuster谱 |
Statistical Study on the Correlation Between Seismic Activity and Tides in Japan |
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| ZHANG Han,XIE Chaodi,YAN Ruyu,LI Xiang,LIU Benyu,YU Haiying.Statistical Study on the Correlation Between Seismic Activity and Tides in Japan[J].Journal of Geodesy and Geodynamics,2019,39(11):1122-1126. |
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| Authors: | ZHANG Han XIE Chaodi YAN Ruyu LI Xiang LIU Benyu YU Haiying |
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| Abstract: | We select Japan and its adjacent region as study areas,and divide it into some subareas.With the Schuster test we calculate the p-value of each subarea using tidal stresses caused by the sun and the moon.On this basis,the Schuster spectra are built for the subareas with p<5% in order to estimate the periodicity of seismicity in the subareas.Then,the correlation between seismicity and tidal stress in Japanis studied further.The results show that among the 75 subareas,the p-value of 22 subareas is less than 5%,and 2 of 22 subareas’ Schuster spectra show a distinct period of semidiurnal tides,which indicates the seismicity in these areas has a degree of triggering by tides. |
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| Keywords: | tidal triggering Japan earthquake Schuster test Schuster spectrum |
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