Articles | Volume 22, issue 3
Nat. Hazards Earth Syst. Sci., 22, 1073–1082, 2022

Special issue: Tsunamis: from source processes to coastal hazard and...

Nat. Hazards Earth Syst. Sci., 22, 1073–1082, 2022
Research article
01 Apr 2022
Research article | 01 Apr 2022

Characteristics of two tsunamis generated by successive Mw 7.4 and Mw 8.1 earthquakes in the Kermadec Islands on 4 March 2021

Yuchen Wang et al.

Related authors

Distorted Pacific–North American teleconnection at the Last Glacial Maximum
Yongyun Hu, Yan Xia, Zhengyu Liu, Yuchen Wang, Zhengyao Lu, and Tao Wang
Clim. Past, 16, 199–209,,, 2020
Short summary
Spatiotemporal variability of NO2 and PM2.5 over Eastern China: observational and model analyses with a novel statistical method
Mengyao Liu, Jintai Lin, Yuchen Wang, Yang Sun, Bo Zheng, Jingyuan Shao, Lulu Chen, Yixuan Zheng, Jinxuan Chen, Tzung-May Fu, Yingying Yan, Qiang Zhang, and Zhaohua Wu
Atmos. Chem. Phys., 18, 12933–12952,,, 2018
Short summary

Related subject area

Sea, Ocean and Coastal Hazards
Multi-hazard analysis of flood and tsunamis on the western Mediterranean coast of Turkey
Cuneyt Yavuz, Kutay Yilmaz, and Gorkem Onder
Nat. Hazards Earth Syst. Sci., 22, 3725–3736,,, 2022
Short summary
Importance of non-stationary analysis for assessing extreme sea levels under sea level rise
Damiano Baldan, Elisa Coraci, Franco Crosato, Maurizio Ferla, Andrea Bonometto, and Sara Morucci
Nat. Hazards Earth Syst. Sci., 22, 3663–3677,,, 2022
Short summary
Wind-wave characteristics and extremes along the Emilia-Romagna coast
Umesh Pranavam Ayyappan Pillai, Nadia Pinardi, Ivan Federico, Salvatore Causio, Francesco Trotta, Silvia Unguendoli, and Andrea Valentini
Nat. Hazards Earth Syst. Sci., 22, 3413–3433,,, 2022
Short summary
Partitioning the contributions of dependent offshore forcing conditions in the probabilistic assessment of future coastal flooding
Jeremy Rohmer, Deborah Idier, Remi Thieblemont, Goneri Le Cozannet, and François Bachoc
Nat. Hazards Earth Syst. Sci., 22, 3167–3182,,, 2022
Short summary
Identification and ranking of subaerial volcanic tsunami hazard sources in Southeast Asia
Edgar U. Zorn, Aiym Orynbaikyzy, Simon Plank, Andrey Babeyko, Herlan Darmawan, Ismail Fata Robbany, and Thomas R. Walter
Nat. Hazards Earth Syst. Sci., 22, 3083–3104,,, 2022
Short summary

Cited articles

Aránguiz, R., Catalán, P. A., Cecioni, C., Bellotti, G., Henriquez, P., and González, J.: Tsunami resonance and spatial pattern of natural oscillation modes with multiple resonators, J. Geophys. Res.-Oceans, 124, 7797–7816,, 2019. 
Baba, T., Takahashi, N. Kaneda, Y. Ando, K. Matsuoka, D., and Kato, T.: Parallel implementation of dispersive tsunami wave modeling with a nesting algorithm for the 2011 Tohoku Tsunami, Pure Appl. Geophys., 172, 3433–3472,, 2015. 
Billen, M. I., Gurnis, M., and Simons, M.: Multiscale dynamics of the Tonga-Kermadec subduction zone, Geophys. J. Int., 153, 359–388,, 2003. 
Cortés, P., Catalán, P. A., Aránguiz, R., and Bellotti, G.: Tsunami and shelf resonance on the northern Chile coast, J. Geophys. Res.-Oceans, 122, 7364–7379,, 2017. 
GEBCO: Global ocean & land terrain models, GEBCO [code],, last access: 29 March 2022. 
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.
Final-revised paper