Probabilistic Tsunami Hazard assessment for near-field events
Year: 2013
Type: article
Abstract: The present paper describes a methodology to incorp orate uncertainty on tsunami hazard assessments, sp ecifically within the framework of Tsunami Warning Systems based on databases of pre-computed scenarios. The method uses sub fault unitary sources to discretize the possibl e rupture domain, whose tsunami solutions are then linearly combined to generate time series at forecast points. Aggrega tion of all possible scenarios yields exceedance pr obability curves for wave height and arrival times, thus providing more information than traditional database procedures, w ithout a significant computational cost and loss of accuracy . In this study the focus is set on the uncertainty in epicentral location relative to the rupture and results are ve rified against data from the 2010 Maule Tsunami in Chile, with good qualitative agreement. The procedure could be easil y expanded to include other uncertainty sources, an d also can be coupled to inversion techniques if real time data b ecomes available.
Source: Americanae (AECID Library)
Authors: Gubler, A., Catalan, P., Hayashi, Y.
Language: English
Subfield: Civil and Structural Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2183446239