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  • Citation: Xu, L. S., Zhang, X., and Li, C. L. (2018). Which velocity model is more suitable for the 2017 MS7.0 Jiuzhaigou earthquake?. Earth Planet. Phys., 2, 163–169. http://doi.org/10.26464/epp2018016.
    Citation: Citation: Xu, L. S., Zhang, X., and Li, C. L. (2018). Which velocity model is more suitable for the 2017 MS7.0 Jiuzhaigou earthquake?. Earth Planet. Phys., 2, 163–169. http://doi.org/10.26464/epp2018016.
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Which velocity model is more suitable for the 2017 MS7.0 Jiuzhaigou earthquake?

  • On Aug. 8, 2017, an MS7.0 earthquake struck Jiuzhaigou, a county of Sichuan province, China. A number of investigations and studies have been conducted, some of which involved local velocity models. However, the suitability of these models has not been properly addressed. Here we collect 11 already-existing models, including those used in studies of the 2017 MS7.0 Jiuzhaigou earthquake, choose 10 local stations surrounding the earthquake, and employ the same technique (TRIT) to relocate the hypocenter. And furthermore, we choose a more suitable model from the 11 already-existed models by analyzing the relocation process and the relocated results for reasonability. Finally, our conclusion is that the model Fang2018 is more suitable and the hypocenter parameters, 103.801°E, 33.192°N and 15.8 km for longitude, latitude and depth, respectively, and 2017-08-08 13:19:46.66 for its origin time, based on this model should be recommended for the 2017 MS7.0 Jiuzhaigou earthquake.

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