Dataset of Post-Event Survey of the 2024 Noto Peninsula Earthquake Tsunami in Japan

On January 1, 2024, a magnitude 7.5 earthquake struck the northern Noto Peninsula in Japan, triggering a tsunami that caused extensive damage across Ishikawa, Toyama, and Niigata Prefectures. In response to the disaster, around 70 researchers from 23 institutions formed a joint research group to conduct a detailed post-tsunami survey along a 340 km coastline. They utilized advanced surveying techniques to compile the NP2024TS dataset, which includes 303 records detailing tsunami inundation and run-up heights, providing valuable insights for understanding tsunami dynamics and validating numerical models.

The tsunami reached coastal areas shortly after the earthquake, with significant inundation occurring within minutes. The Japan Meteorological Agency issued timely warnings that facilitated evacuations, limiting casualties from the tsunami itself to just two fatalities, while the earthquake caused 241 deaths due to structural collapses. The tsunami inundated over 1.9 million square meters of land in Ishikawa Prefecture, with varying impacts influenced by the region's complex underwater topography.

The NP2024TS dataset aims to enhance future tsunami hazard assessments by documenting detailed measurements and observations related to the tsunami's behavior and its effects on coastal communities. This comprehensive dataset is crucial for improving disaster preparedness and response strategies both domestically and internationally, as it captures essential data on tsunami generation, propagation, and land inundation mechanisms necessary for effective planning and mitigation efforts.