Short Note: 2022 Hunga Tonga-Hunga Ha'apai tsunami measured beneath the Ross Ice Shelf

• Published in: Antarctic Science
• Main Authors: Stewart, Craig, Horgan, Huw, Stevens, Craig
• Format: Article in Journal/Newspaper
• Language: English
• Published: Cambridge University Press (CUP) 2023
• Subjects: Carvajal; Pacific; Ross Ice Shelf; Tonga; Antarctic Science; Ice Shelf
• Online Access: http://dx.doi.org/10.1017/s0954102023000366; https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000366

On 15 January 2022, 04h:15 UTC, the volcano Hunga Tonga-Hunga Ha'apai in the south-west Pacific Ocean (20°32'32.37''S, 175°23'38.67''W) erupted in what proved to be the most powerful such event since Krakatau in 1883. Among the many impacts of the eruption, a substantial tsunami propagated throughout the south-west Pacific Ocean. The signatures of the eruption were recorded at a wide range of recording stations globally, including the atmospheric pressure wave, the tsunami itself and, in addition, higher-order responses, such as a tsunami associated with the pressure wave (Carvajal et al. 2022).