Openquake 0.3 hazard disaggregation_calculator

Notes

The disaggregation calculator computes the contributions to this value of hazard for discrete combinations of basic parameters considered in hazard calculation (e.g. magnitude, rupture-site distance), given:

• An Earthquake Rupture Forecast Logic Tree
• A GMPE Logic Tree
• One site
• A scalar parameter descriptive of ground motion intensity (i.e. IML) with a specified probability of exceedance in a given time span

The most typical representation of disaggreation results shows contributions to a fixed value of hazard (e.g. PGA with 10% probability of exceedance in 50 years) for different combinations of:

• Rupture magnitude
• Rupture-site distance
• Normalized residual of gm (epsilon)

On the contrary, geographic disaggreation provides contributions for different combinations of:

• Rupture magnitude
• Longitude of the point on the rupture used to compute the distance from the site
• Latitude of the point on the rupture used to compute the distance from the site
• Normalized residual of gm (epsilon)

New feature:

• Add support for M-R-epsilon disaggregation
• Add support for geographic disaggregation

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