To estimate tsunami hazards, it is first necessary to have reliable data relating to the rupture characteristics, such as epicenter, fault geometry, uplift speed, and duration. We made use of a mathematical model that combines analytical and machine learning technique capable of retrieving rupture characteristics from acoustic data. The model was applied with short computational times to data recorded by the comprehensive nuclear-test-Ban Treaty organization hydrophones during four tectonic events that were reported to trigger tsunami waves. The presented inverse problem model for acoustic waves with adequate tsunami propagation tools can be used as a complementary technique alongside tsunami warning systems due to the high propagating speeds of the sound in the ocean. In this paper, the validity of the solutions provided by the inverse problem model is tested by using the calculated earthquake parameters as input to the Cornell multi-grid coupled tsunami numerical model, which, in turn, output surface wave elevations (tsunami) to be compared against deep-ocean assessment and reporting of tsunamis buoy data.
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Numerical validation of an effective slender fault source solution for past tsunami scenarios
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April 2023
Research Article|
April 25 2023
Numerical validation of an effective slender fault source solution for past tsunami scenarios
Special Collection:
Physics and Modelling of Tsunamis
Bernabe Gomez
;
Bernabe Gomez
a)
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Department of Civil and Environmental Engineering, University of California
, Los Angeles, California 90095, USA
a)Author to whom correspondence should be addressed: bernagom30@g.ucla.edu
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Usama Kadri
Usama Kadri
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
2
School of Mathematics, Cardiff University
, Senghennydd Road, Cardiff CF24 4AG, United Kingdom
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a)Author to whom correspondence should be addressed: bernagom30@g.ucla.edu
Note: This paper is part of the special topic, Physics and Modelling of Tsunamis.
Physics of Fluids 35, 046113 (2023)
Article history
Received:
January 29 2023
Accepted:
February 28 2023
Citation
Bernabe Gomez, Usama Kadri; Numerical validation of an effective slender fault source solution for past tsunami scenarios. Physics of Fluids 1 April 2023; 35 (4): 046113. https://doi.org/10.1063/5.0144360
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