Hydro-Acoustic Wave Generation during the Tohoku-Oki 2011 Earthquake

Document Type

Conference Proceeding

Date of Original Version



We investigate the surface gravity and hydro-acoustic wave fields, generated by the 2011 Tohoku-Oki tsunamigenic event using a numerical model based on a computationally efficient depth-integrated equations for a compressible water column coupled to a dissipative sedimentary layers. Spectral analysis of bottom pressure time series obtained in deep water revealed the role of underlying layer on the formation of hydro-acoustic waves and carrying frequency range, damping and trapping behaviors. The presented methodology can enhance the promptness and the accuracy of tsunami early warning systems (TEWS).

Publication Title, e.g., Journal

Coastal Structures and Solutions to Coastal Disasters 2015: Tsunamis - Proceedings of the Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015