Investigation of Tsunami Damages in Joetsu, Niigata Pref. Caused by 2024 Noto Peninsula Earthquake

Abstract

An earthquake with M7.6 occured on 1st January 2024, at 16:10 JST at the northeastern tip of the Noto Peninsula of Ishikawa Prefecture, Japan. This earthquake caused tsunami, and many tsunamis were reported. This report shows the investigation results on tsunami damages in Joetsu, Niigata Prefecture. The tsunami generated by the earthquake reached at the Seki river mouth around 16:35, and the peak water level of T.P 1.94 m was measured. The inundation due to tsunami occurred on the right bank near the Seki river mouth. A run-up height of about 5.5 m was estimated at Ogata fishery harbor, and some huts had damages in the harbor. In Ogata coast, run-up heights around 5 to 7 m were estimated.