Fig. 7From: Washover deposits related to tsunami and storm surge along the north coast of the Shimokita Peninsula in northern JapanGrain-size analysis of SKN-GS samples. Histograms show phi-scale grain-size distributions. Vertical axis indicates the probability of particles. Pie charts show gravel, sand, and mud contents. N means the number of particle samples measured. In the histogram, blue means that the size distribution is different from that of present-day beach sediments (presented in Fig. 9); pink means that it is similar to that of present-day beach sediments; and orange means that it is somewhat similar. Mean, median, mode, skewness, and kurtosis of each histogram are shown in Additional file 2: Table S1Back to article page