The ground uplift caused by the 2024 Noto Peninsula Earthquake made seaweed beds along the Wajima coast dry up, resulting in the death of a large number of organisms growing there. In addition, environment of bottom sediment and remained seaweed beds deteriorated significantly by fine-grained mud deposited mainly in the area around the mouth of the river from July onward, 2024. This mud was caused by the inflow of land-based sediment into the coastal area due to heavy rainfall, and it is highly likely that the damage was exacerbated by the fact that numerous landslides that occurred around rivers at the time of the earthquake were not repaired until the rainy season. Furthermore, flood damage from the Oku-Noto Torrential Rain occurred in September of the same year. The full extent of the damage to seaweed beds has not been known yet, but it is clear that this flood caused damage to seaweed beds extensively, because large trees, rubble and other debris as well as mud flowed into seashores and accumulated in large quantities.
