Attenuation models for expected ground motions in Sri Lanka

Gamage, P and Venkatesan, S 2014, 'Attenuation models for expected ground motions in Sri Lanka', in Proceedings of the 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23 2014), Byron Bay, Australia, 9-12 December 2014, pp. 973-978.


Document type: Conference Paper
Collection: Conference Papers

Title Attenuation models for expected ground motions in Sri Lanka
Author(s) Gamage, P
Venkatesan, S
Year 2014
Conference name ACMSM23 2014
Conference location Byron Bay, Australia
Conference dates 9-12 December 2014
Proceedings title Proceedings of the 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23 2014)
Publisher Southern Cross University
Place of publication New South Wales, Australia
Start page 973
End page 978
Total pages 6
Abstract Infrequent seismic activities around Sri Lanka have resulted in fewer reliable attenuation models. Therefore in this paper, attenuation models have been developed using an artificially generated strong motion data set. Two sets of models were derived; one to model merely local effects within the continental crust, and the other to model regional effects including the surrounding northern Indian Oceanic crust. While the local attenuation model is more reliable in estimating ground motions up to around 400 km, the regional model shows capability inn predicting accurate ground motions at long distances as far as 1000s km. The findings are based on a validation of the models with a set of actual event records available at the country's seismic network. Finally, the results would be helpful in modelling the seismic hazard for a low seismic island region of intraplate seismicity - Sri Lanka.
Subjects Earthquake Engineering
Keyword(s) Attenuation
Stochastic simulation
Ground motion models
Regression
Sri Lanka
Copyright notice © 2014 Southern Cross University
ISBN 9780994152008
Versions
Version Filter Type
Access Statistics: 107 Abstract Views  -  Detailed Statistics
Created: Wed, 10 Jun 2015, 10:48:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us