Articles | Volume 22, issue 3
https://doi.org/10.5194/nhess-22-1073-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/nhess-22-1073-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Characteristics of two tsunamis generated by successive Mw 7.4 and Mw 8.1 earthquakes in the Kermadec Islands on 4 March 2021
Earthquake Research Institute, The University of Tokyo, Tokyo,
113-0032, Japan
Japan Agency for Marine–Earth Science and Technology, Kanazawa,
Yokohama, 236-0001, Japan
Mohammad Heidarzadeh
Department of Civil and Environmental Engineering, Brunel University London, Uxbridge, UB8 3PH, UK
Department of Architecture and Civil Engineering, University of Bath, Bath BA2 7AY, UK
Kenji Satake
Earthquake Research Institute, The University of Tokyo, Tokyo,
113-0032, Japan
Gui Hu
Guangdong Provincial Key Laboratory of Geodynamics and Geohazards,
School of Earth Sciences and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
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- Source Characteristics of the 18 November 2022 Earthquake ($${M}_{W}$$ 6.7), Offshore Southwest Sumatra, Indonesia, Revealed by Tsunami Waveform Analysis: Implications for Tsunami Hazard Assessment S. Sriyanto et al. 10.1007/s00024-023-03371-2
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- Resonance characteristics and impact of the 2006 Pingtung tsunami in southern Taiwan A. Cheng et al. 10.1186/s40562-023-00271-0
- Records of the 5 March 2021 Raoul Island transoceanic tsunami around the Pacific Ocean J. Roger 10.1080/00288306.2023.2225859
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- Tsunamis in Lingding Bay, China, caused by the 2022 Tonga volcanic eruption Y. Wang et al. 10.1093/gji/ggac291
- Tsunami hazards and risks from the Philippine Trench: The cases of 2012 and 2023 Mw 7.6 tsunamigenic earthquakes M. Heidarzadeh et al. 10.1016/j.oceaneng.2025.120985
- Modeling the 2024 Noto Peninsula earthquake tsunami: implications for tsunami sources in the eastern margin of the Japan Sea H. Masuda et al. 10.1186/s40562-024-00344-8
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Latest update: 23 Apr 2025
Short summary
Tsunami waveforms contain the features of its source, propagation path, and local topography. On 4 March 2021, two tsunamis were generated by earthquakes in the Kermadec Islands, New Zealand, within 2 h. This rare case gives us a valuable opportunity to study the characteristics of two tsunamis. We analyzed the records of two tsunamis at tide gauges with spectral analysis tools. It is found that two tsunamis superpose during the few hours after the arrival of the second tsunami.
Tsunami waveforms contain the features of its source, propagation path, and local topography. On...
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