OQ ENGINE KEY FEATURES
Single software
Combines hazard and risk in a single software
Compatibility
Compatible with various existing hazard, vulnerability and exposure models
Calculations
Calculates scenario and probabilistic hazard and risk analysis
Different Scales
Supports calculations at different scales
Uncertainties
Accounts for wide spectrum of uncertainties
Typologies
Large set of source typologies for modelling faults as well as distributed seismicity
Logic Tree
Logic tree support (representing epistemic uncertainty)
Explicit Uncertainty
Explicit representation of uncertainty, including separation of epistemic from aleatory
Pre-computed data
Runs risk calculations for precomputed hazard curves and ground motion fields
OQ ENGINE CALCULATORS AND OUTPUTS
PHYSICAL RISK
Classical PSHA-based:
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asset-specific loss exceedance curves, average annual loss, loss maps, building typology disaggregation
Event-based risk:
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event loss tables, loss exceedance curves - asset specific and aggregated, average annual loss, loss maps, loss disaggregation
Scenario hazard:
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loss statistics, loss maps
Scenario damage:
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collapse maps, damage distribution per asset and building typology
HAZARD
Classical PSHA*:
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hazard curves, hazard maps, uniform hazard spectra (UHS), disaggregation
Event-based hazard:
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stochastic earthquake event sets and ground motion fields, hazard curves, hazard maps
Scenario hazard:
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single event - stochastically generated ground motion fields
Additional features:
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5 typologies for modeling seismic sources
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100+ GMPEs implemented and tested
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Tools for harmonizing catalogs, creating seismogenic input files, analyzing strong motions and GMPEs
