%0 journal article
%@ 0094-8276
%A Anup, N.,Rohith, B.,Vijith, V.,Rose, L.,Sreeraj, P.,Sabu, A.,Krishnamohan, K.S.,Sudeepkumar, B.L.,Sunil, A.S.,Sunil, P.S.

%D 2024
%J Geophysical Research Letters
%N 2
%P e2023GL108036 
%R doi:10.1029/2023GL108036
%T Volcanic Eruption Triggers a Rare Meteotsunami in the Indian Ocean
%U https://doi.org/10.1029/2023GL108036
2 
%X This study presents the observation and evaluation of a meteotsunami in the Indian Ocean triggered by the Hunga-Tonga volcanic eruption. The event was detected through tide gauges and bottom-pressure recordings across the Indian Ocean, with an amplitude of 10–15 cm, lasting for a few days. A numerical model was used to understand the ocean's response to meteotsunami and evaluate the dynamics behind it. The model results show that the sea-level oscillations result from the ocean waves generated by a propagating Lamb wave. In addition to interaction with bathymetry, refracted and reflected waves also determine the sea-level variability. Our analysis shows that bathymetric slope plays a vital role in near-shore processes. The spectral and spatial characteristics of the meteotsunami were reminiscent of seismic tsunamis. Our research on this rare event elucidates the unresolved issues and eventually leads to designing a blueprint for future observation and modeling of meteotsunamis and seismic tsunamis.