3D Numerical Simulation of Hydro-Acoustic Waves Registered during the 2012 Negros-Cebu Earthquake

Claudia Cecioni; Alessandro Romano; Giorgio Bellotti; Paolo De Girolamo

doi:10.3390/geosciences9070300

Geosciences (Jul 2019)

3D Numerical Simulation of Hydro-Acoustic Waves Registered during the 2012 Negros-Cebu Earthquake

Claudia Cecioni,
Alessandro Romano,
Giorgio Bellotti,
Paolo De Girolamo

Affiliations

Claudia Cecioni: Department of Engineering, Roma Tre University, via Vito Volterra 62, 00146 Rome, Italy
Alessandro Romano: Department of Civil, Constructional and Environmental Engineering, Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy
Giorgio Bellotti: Department of Engineering, Roma Tre University, via Vito Volterra 62, 00146 Rome, Italy
Paolo De Girolamo: Department of Civil, Constructional and Environmental Engineering, Sapienza University of Rome, via Eudossiana 18, 00184 Rome, Italy

DOI: https://doi.org/10.3390/geosciences9070300
Journal volume & issue: Vol. 9, no. 7
p. 300

Abstract

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The paper investigates on the hydro-acoustic waves propagation caused by the underwater earthquake, occurred on 6 February 2012, between the Negros and Cebu islands, in the Philippines. Hydro-acoustic waves are pressure waves that propagate at the sound celerity in water. These waves can be triggered by the sudden vertical sea-bed movement, due to underwater earthquakes. The results of three dimensional numerical simulations, which solve the wave equation in a weakly compressible sea water domain are presented. The hydro-acoustic signal is compared to an underwater acoustic signal recorded during the event by a scuba diver, who was about 12 km far from the earthquake epicenter.

Published in Geosciences

ISSN: 2076-3263 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Geology
Website: https://www.mdpi.com/journal/geosciences

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