| 贵州地震时空分布规律探析 |
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| 引用本文： | 刘家仁,王尚彦,刘宇.贵州地震时空分布规律探析[J].贵州地质,2011(4):295-299,259. |
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| 作者姓名： | 刘家仁 王尚彦 刘宇 |
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| 作者单位： | 贵州省地质矿产勘查开发局;贵州省地震局;云南大学软件学院 |
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| 基金项目： | 贵州省科技攻关项目(编号[2009]3037号);贵州省优秀科技教育人才省长专项资金项目(编号[2009]75号) |
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| 摘 要： | 如果以垭都—紫云—罗甸断裂带北东侧为界将贵州省分为A、B两个区域,则：①地震在A区分布较为密集,而在B区分布较为稀散。单位国土面积上释放的地震能量,前者比后者要大一个数量级,反映两者在力学性质上存在较大差异。②A区地震释放能量在深度约5.5km处突然出现一个高达2个数量级的跃升,在深度约7 km处回落到接近跃升前的位置,而后又逐渐下降,反映该区域5.5～7 km深度地层的力学强度较低。③贵州地震释放能量总体似乎呈周期性变化,变化周期在11～15年间变动。A、B两区域地震释放能量的高峰年有此消彼长的现象,即A区出现地震活动高峰时,B区相对比较平静;而B区出现地震活动高峰时,A区相对比较平静。
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| 关 键 词： | 地震 能量释放 时空分布规律 贵州 |
Spatial and Temporal Distribution Rule of Earthquake in Guizhou |
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| LIU Jia-ren,WANG Shang-yan,LIU Yu.Spatial and Temporal Distribution Rule of Earthquake in Guizhou[J].Guizhou Geology,2011(4):295-299,259. |
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| Authors: | LIU Jia-ren WANG Shang-yan LIU Yu |
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| Institution: | 1.Guizhou Bureau of Geology and Mineral Exploration & Development,Guiyang 550004,Guizhou,China;2.Guizhou Earthquake Adminstration,Guiyang 550004,Guizhou,China; 3.School of Software,Yunnan Vniversity,kunming 650500,Yunnan,China) |
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| Abstract: | If Guizhou province is divided into A and B region from the northeast Yadu-Ziyun-Luodian faulted zone,the earthquake distribution dense in A region is one order of magnitude more than B region,the difference of echanical property is reflected.The earthquake energy release in A region raises 2 order of magnitude in the depth of about 5.5km,return in the depth of 7km and falls slowly,the mechanic intensity is low in the depth of 5.5 to 7km.Generally,the variation of the released earthquake energy is periodic,the period is about 11 to 15 years.The rush year of earthquake energy released in A and B eliminate each other: when the earthquake rush year appears in A region,B region is quite,but A region is quite when the earthquake rush year appears in Bregion. |
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| Keywords: | earthquake energy release spatial and temporal distribution Guizhou |
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