VAK Russia 1.6.17 UDC 551.466.62 CSCSTI 37.25 Russian Classification of Professions by Education 05.06.01 Russian Library and Bibliographic Classification 26 Russian Trade and Bibliographic Classification 63 BISAC SCI VAK Russia 1.6 UDC 550.344.42 UDC 55 UDC 550.34 UDC 550.383 CSCSTI 37.01 CSCSTI 37.15 CSCSTI 37.31 CSCSTI 38.01 CSCSTI 36.00 CSCSTI 37.00 CSCSTI 38.00 CSCSTI 39.00 CSCSTI 52.00

NUMERICAL SIMULATION OF TSUNAMI DURING THE EARTHQUAKE IN THE PHILIPPINES 02.12.2023 Numerical Simulation of Tsunami During the Earthquake in the Philippines 02.12.2023

Published in Russian Journal of Earth Sciences · Volume 24, Issue 5 · Pages 1–14 · Rubric: ORIGINAL ARTICLES
DOI: https://doi.org/10.2205/2024es000949 · EDN: MWVWQN
Received: 30.07.2024 Accepted: 05.11.2024 Published: 28.11.2024 Language of publication: ENG
In this paper numerical simulation of tsunami waves is carried out using data from the earthquake off the coast of Mindanao Island in the Philippine Sea on 23 December 2023 in the western part of the Pacific Ocean. The paper considers two scenarios of seismic source localization with different dynamics of the Earth's crust displacement in the seismic source region during the earthquake process. Consideration of two scenarios with different location of keyboard blocks, into which the earthquake source is segmented, allows one to study the influence of source geometry on the characteristics of generated tsunami waves. In the course of simulation, during dynamic displacement of keyboard blocks in the earthquake source, tsunami source formation, tsunami waves and their propagation in the Pacific Ocean water area take place. The wave characteristics of the process along the mainland and island zones in the considered water area were obtained. The results of simulation for the two scenarios are compared with observational data, which makes it possible to identify which type of block arrangement provides better similarity with the recorded tsunami characteristics and, therefore, better describes the real dynamics of the earthquake source.
earthquake and tsunami in the Philippines 02.12.2023, earthquake sources, tsunami source, tsunami waves, numerical simulation, tsunami wave characteristics
Funding
This work was supported by the Laboratory of Nonlinear Hydrophysics and Natural Disasters of the V.I. Il'ichev Pacific Oceanological Institute, grant of the Ministry of Science and Higher Education of the Russian Federation (agreement No. 075- 15-2022-1127 dated July 1, 2022).
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