TS-GAUSS, a web application for rapid estimation of tsunami impact based on pre-calculated simulations in the Mediterranean Sea.

TS-GAUSS (http://ts-gauss.rm.ingv.it/) is a Virtual Access service which provides a rapid method to model  tsunami propagation for a set of predefined points of interest (POIs) using a dataset of pre-calculated tsunami waveforms. This web application exploits the concept of the surface Green's functions described in Molinari et al., 2016, and consists of two consequent steps: (1) simulation of the initial tsunami conditions for an arbitrary seismic source and (2) linear combination of Gaussian-shaped elementary sources uniformly distributed across the Mediterranean Sea. The service supports the most common browsers (Google Chrome, Mozilla Firefox, Safari, Microsoft Edge) and no login credentials are currently required. The graphical user interface (GUI) consists of an intuitive input form to provide the seismic parameters of an arbitrary seismic source and an interactive map of the domain. The corresponding results are shown on the map and they can be easily downloaded in different formats and contents (as standalone navigable maps, static figures and/or explicit data) depending on the needs of the users. The service can represent a useful instrument for both students and the scientific community, in particular for tsunami modellers, hazard and risk analysts and for the activities connected to tsunami early warning centres. The landing page includes documentation and links to more detailed resources and a weekly report is automatically created to track the statistics of the tool’s usage. Moreover, the source code of the core module of the tool (without the web GUI) is a package of C++ routines, currently available as a gitlab repository (Babeyko et al., 2024). TS-GAUSS, in the near future, will also become one of the services hosted by the EPOS TCS Tsunami portal (tsunamidata.org).  

This work has received funding from the European Union through the Geo-INQUIRE project (GA 101058518), within the Research Infrastructures Programme of Horizon Europe.

Babeyko, A., Romano, F. and Tonini, R. (2024): Tsunami simulation Green's function toolbox TS-GAUSS. GFZ Data Services. https://doi.org/10.5880/GFZ.2.5.2024.002

Molinari, I., Tonini, R., Lorito, S., Piatanesi, A., Romano, F., Melini, D., Hoechner, A., Gonzàlez Vida, J. M., Maciás, J., Castro, M. J., and de la Asunción, M.: Fast evaluation of tsunami scenarios: uncertainty assessment for a Mediterranean Sea database, Nat. Hazards Earth Syst. Sci., 16, 2593–2602, https://doi.org/10.5194/nhess-16-2593-2016, 2016.