By using Chapman-Enskog expansion and multi-scales technique, we obtained a series lattice Boltzmann equations and conservation law in the time scale t0. We select simple equilibrium distribution functions to get moments for the pressure wave equations.

• 通过使用Chapman-Enskog展开和多重尺度技术；得到了一系列的格子Boltzmann方程和时间尺度t0上守恒律；给出了满足地震压力波方程所要求的高阶矩以及简单的平衡态分布函数表达式.