Bibliographic Details
| Title: |
Characteristics of tsunami propagation around the northern to western coasts of Noto Peninsula, Japan, generated by the 2024 Noto Peninsula earthquake. |
| Authors: |
Umeda, Shinya, Yuhi, Masatoshi, Arita, Mamoru, Ninomiya, Junichi |
| Source: |
Coastal Engineering Journal; Dec2025, Vol. 67 Issue 4, p725-746, 22p |
| Subject Terms: |
BATHYMETRY, EARTHQUAKES, GEOLOGIC faults, WAVE energy, PENINSULAS, OCEAN waves, GEOPHYSICAL observations, TSUNAMI forecasting |
| Geographic Terms: |
JAPAN |
| Abstract: |
The 2024 Noto Peninsula earthquake was characterized by ground uplift and nearshore tsunamis generated by shallow coastal faults. However, limited observation and research have left tsunami propagation characteristics in the source region unclear. This study investigated tsunami propagation around the peninsula, edge wave generation along the western coast, and tsunami heights and wave responses along the uplifted northwestern coast. Tsunami simulations combined with energy flux analyses effectively visualized the extensive propagation paths originating from individual sub-fault segments and the complex propagation of edge waves trapped in shallow waters. The results indicated that the largest wave on the western coast originated from a distant sub-fault segment in the northeastern peninsula. The study also examined the extent of energy concentration zones for edge waves and how bathymetry around Amamisaki Cape and the adjacent Togi Bay contributed to edge wave formation. Regarding the absence of tsunami damage observed at Wajima Port, the findings suggested that seismic ground deformation may have reduced the maximum water level near the shoreline. Finally, focusing on tsunami trace preservation, we analyzed the differing behaviors of initial and subsequent waves on Minazuki Beach, indicating that identifying traces from initial waves was particularly difficult along substantially uplifted coasts. [ABSTRACT FROM AUTHOR] |
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