姚安地震是2009年7月9日19时19分，发生在云南省楚雄彝族自治州姚安县（北纬25.6度、东经101.1度）的6.0级地震，震中位于姚安县官屯乡，距姚安县城约16公里，震源深度约10公里。
用姚安地震序列前震、主震和余震的78个震源机制解，分析了序列震源断层和震源应力场特征。
We use 78 focal mechanisms of the fore shocks, main-shock and after shocks of the Yao 'an earthquake sequence to analyze the characteristics of focal fault and stress field.
7月9日19时，云南省姚安县发生6.0级地震，205万人受灾。
The magnitude-6.0 earthquake Thursday night in Yunnan has affected 2.05m people.
此次地震伴随8次余震，当地民政部门已经向姚安下发了4500顶帐篷，3000套被褥及其他救灾物资。
The quake was followed by eight aftershocks and the provincial civil affairs department was sending 4, 500 tents, 3, 000 quilts and other relief materials to Yao`an, Xinhua said.
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