Precise analysis of Huailai earthquake swarm on Jan.9, 2016

Yue Xiaoyuan;Wu Anxu;Hu Leyin;Feng Gang;Earthquake Administration of Beijing Municipality;  

On January 9th, 2016, an ML 3.1 earthquake occurred on Huailai County of Hebei Province. The area is an active area for earthquakes, where many earthquakes of magnitude greater than MS 5 have been recorded in history, to further judge earthquake activity trend in the future, the earthquake swarm is precise analyzed on earthquake sequence, seismic activity, apparent stress and velocity ratio. The result shows that, the earthquake swarm was not a precursory one, the stress level was low.

【Key Words】： Huailai earthquake swarm precise analysis activity trend
【Fund】： 北京市地震局科技项目青年专项
【CateGory Index】： P315

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