| 新疆乌苏5.1级地震前波速比异常震例研究 |
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| 引用本文： | 龙海英,聂晓红,唐兰兰.新疆乌苏5.1级地震前波速比异常震例研究[J].地震研究,2011,34(2):126-130. |
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| 作者姓名： | 龙海英 聂晓红 唐兰兰 |
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| 作者单位： | 新疆维吾尔自治区地震局,乌鲁木齐,830011 |
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| 基金项目： | 新疆天山中段波速比异常的应用研究资助(2009020103); 2011年度新疆地震重点危险区强震趋势与短临危险强化跟踪研究(2011016501)联合资助 |
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| 摘 要： | 利用天山中段数字化地震波资料,采用多台和达法,计算2006年11月23日新疆乌苏5.1级地震前后波速比的变化情况,得到如下结果:(1)在空间分布上,乌苏5.1级地震前,波速比形成一个近似椭圆形低值异常区,且椭圆长半轴约为70 km,短半轴约为55 km,椭圆走向NW,地震就发生在该椭圆区域的西北部边缘；(2)在时间进程...
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| 关 键 词： | 乌苏5.1级地震 波速比异常 多台法 天山中段 |
Study of the Abnormity of Wave-velocity Ratio before M_S5.1 Wusu Earthquake in Xinjiang |
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| LONG Hai-ying,NIE Xiao-hong,TANG Lan-lan.Study of the Abnormity of Wave-velocity Ratio before M_S5.1 Wusu Earthquake in Xinjiang[J].Journal of Seismological Research,2011,34(2):126-130. |
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| Authors: | LONG Hai-ying NIE Xiao-hong TANG Lan-lan |
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| Institution: | LONG Hai-ying,NIE Xiao-hong,TANG Lan-lan (Earthquake Administration of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China) |
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| Abstract: | We use the digital wave form data of earthquakes in middle part of the Tianshan Mountains and apply the Multi-station Method to calculate the wave-velocity ratio before and after the MS5.1 Wusu earthquake on Nov.23,2006.We obtain the following results:(1)In the aspect of spatial distribution,the wave-velocity ratio formed a low-value oval area before the MS5.1 Wusu earthquake.The long axis is approximately 70 km in radius,while the short axis is approximately 55 km in radius.And the ellipse is in NW directi... |
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| Keywords: | MS5 1 Wusu earthquake wave-velocity ratio Multi-station Method middle part of the Tianshan mountains |
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