Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, Japan

Abstract On 1 January 2024, a massive earthquake struck the Noto Peninsula in Japan, and the resulting tsunami significantly damaged the nearby coasts. This study focuses on Iida Bay, located on the peninsula that suffered severe coastal damage. We observed a tsunami waveform in Iida Bay from video...

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Main Authors: Y. Yamanaka, Y. Matsuba, T. Shimozono, Y. Tajima
Format: Article
Language:English
Published: Wiley 2024-10-01
Series:Geophysical Research Letters
Online Access:https://doi.org/10.1029/2024GL110231
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author Y. Yamanaka
Y. Matsuba
T. Shimozono
Y. Tajima
author_facet Y. Yamanaka
Y. Matsuba
T. Shimozono
Y. Tajima
author_sort Y. Yamanaka
collection DOAJ
description Abstract On 1 January 2024, a massive earthquake struck the Noto Peninsula in Japan, and the resulting tsunami significantly damaged the nearby coasts. This study focuses on Iida Bay, located on the peninsula that suffered severe coastal damage. We observed a tsunami waveform in Iida Bay from video analysis owing to the lack of instrument data. This, combined with the waveform observed outside the bay, was used to correct the initial sea‐surface displacements produced by a prior source model. We successfully reproduced the observed waveforms with corrected displacements and investigated how the tsunami propagated and amplified in the bay. Alongshore wave propagation and superposition were identified as crucial factors in this tsunami event.
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publishDate 2024-10-01
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series Geophysical Research Letters
spelling doaj-art-25c14de635324f1fa29b6b9e627e90492025-08-20T03:12:51ZengWileyGeophysical Research Letters0094-82761944-80072024-10-015119n/an/a10.1029/2024GL110231Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, JapanY. Yamanaka0Y. Matsuba1T. Shimozono2Y. Tajima3Institute of Seismology and Volcanology Faculty of Science Hokkaido University Hokkaido JapanDepartment of Socio‐Cultural Environmental Studies The University of Tokyo Tokyo JapanDepartment of Civil Engineering The University of Tokyo Tokyo JapanDepartment of Civil Engineering The University of Tokyo Tokyo JapanAbstract On 1 January 2024, a massive earthquake struck the Noto Peninsula in Japan, and the resulting tsunami significantly damaged the nearby coasts. This study focuses on Iida Bay, located on the peninsula that suffered severe coastal damage. We observed a tsunami waveform in Iida Bay from video analysis owing to the lack of instrument data. This, combined with the waveform observed outside the bay, was used to correct the initial sea‐surface displacements produced by a prior source model. We successfully reproduced the observed waveforms with corrected displacements and investigated how the tsunami propagated and amplified in the bay. Alongshore wave propagation and superposition were identified as crucial factors in this tsunami event.https://doi.org/10.1029/2024GL110231
spellingShingle Y. Yamanaka
Y. Matsuba
T. Shimozono
Y. Tajima
Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, Japan
Geophysical Research Letters
title Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, Japan
title_full Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, Japan
title_fullStr Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, Japan
title_full_unstemmed Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, Japan
title_short Nearshore Propagation and Amplification of the Tsunami Following the 2024 Noto Peninsula Earthquake, Japan
title_sort nearshore propagation and amplification of the tsunami following the 2024 noto peninsula earthquake japan
url https://doi.org/10.1029/2024GL110231
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AT ymatsuba nearshorepropagationandamplificationofthetsunamifollowingthe2024notopeninsulaearthquakejapan
AT tshimozono nearshorepropagationandamplificationofthetsunamifollowingthe2024notopeninsulaearthquakejapan
AT ytajima nearshorepropagationandamplificationofthetsunamifollowingthe2024notopeninsulaearthquakejapan