Velocity structure of crust and mid-strong earthquake preparation characteristics in the Huoshan region, East China - Hu, Tiantian; Fan, Xiaoping; He, Yicheng; Yang, Longshuai; Yang, Congjie; Jiang, Pengcheng; Liu, Zhiwen; Xia, Ziyan; Xu, Menghui; Wu, Yuhan (Frontiers in Physics, 2024)