To examine the impact of earthquakes on the occurrence of landslides caused by subsequent rainfall and its period, the number of rainfall events before and after the earthquakes, the number of landslide occurrences, and the periods of high intensity rain after the earthquakes were investigated for 12 large earthquakes. 9 of the 12 earthquakes increased the rate of landslides (number of rainfall events triggering landslides/number of total rainfall events) in the first and second year after the earthquake compared to pre‐earthquake period. In the case of the Kumamoto earthquake, in the first year after the earthquake, areas with more significant seismic intensity at the time of the earthquake tended to have a larger increase in the rate of landslides than in the pre‐earthquake period. 8 of the 12 earthquakes had a much smaller increase in the rate of landslides compared to the pre‐earthquake period than the Kumamoto earthquake, and the increase tended to be in the areas with intensity levels of 4 or 5 lower at the time of the earthquake. The three earthquakes did not increase in the rate of landslides in the two years after the earthquake compared to the pre‐earthquake period. In the case of the Kumamoto earthquake, many landslides were caused by torrential rains two months after the earthquake. On the other hand, the other earthquakes tended to occur landslides caused by torrential rains at least 3 months after the earthquake or to have less number of rainfalls and smaller rainfall magnitudes than the Kumamoto earthquake.