Indonesian Earthquake Fatality Model
This model was developed by Institut Tecknologi Bandung (ITB) and implemented by Dr Hadi Ghasemi, Geoscience Australia
Reference:
Indonesian Earthquake Building-Damage and Fatality Models and Post Disaster Survey Guidelines Development, Bali, 27-28 February 2012, 54pp.
Algorithm:
In this study, the same functional form as Allen (2009) is adopted to express fatality rate as a function of intensity (see Eq. 10 in the report). The Matlab built-in function (fminsearch) for Nelder-Mead algorithm is used to estimate the model parameters. The objective function (L2G norm) that is minimised during the optimisation is the same as the one used by Jaiswal et al. (2010).
The coefficients used in the indonesian model are x=0.62275231, y=8.03314466, zeta=2.15
Allen, T. I., Wald, D. J., Earle, P. S., Marano, K. D., Hotovec, A. J., Lin, K., and Hearne, M., 2009. An Atlas of ShakeMaps and population exposure catalog for earthquake loss modeling, Bull. Earthq. Eng. 7, 701-718.
Jaiswal, K., and Wald, D., 2010. An empirical model for global earthquake fatality estimation, Earthq. Spectra 26, 1017-1037.
Caveats and limitations:
The current model is the result of the above mentioned workshop and reflects the best available information. However, the current model has a number of issues listed below and is expected to evolve further over time.
:author Hadi Ghasemi :rating 3
:param requires category==’hazard’ and subcategory==’earthquake’ and layertype==’raster’ and unit==’MMI’
:param requires category==’exposure’ and subcategory==’population’ and layertype==’raster’
This module forms part of the InaSAFE tool.