Seismic sensor networks detect ground vibrations caused by the movement of large masses, predominantly at low frequencies of 1―3Hz. We modeled sediment flow down a slope and measured ground vibrations in cases with and without a concrete wall at the end of the slope. The sediment weight, amount of water, and presence of iron balls were varied, and the waveform and amplitude spectrum were analyzed. As a basic, small‐scale experiment, physical dissimilarities were not adjusted for. Nevertheless, the ground vibration amplitude and low‐frequency waves mimicked real‐world seismic vibrations.