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OPENQUAKE

OpenQuake (OQ) - comprised of the engine, platform and tools - caters to a variety of users, from modellers and researchers to emergency planners - OpenQuake is used for a wide range of purposes for disaster risk reduction and management.

OPENQUAKE ENGINE

free, open-source software for the assessment of earthquake hazard and risk.

OQ PLATFORM

explore, access, manipulate, visualize GEM datasets, models and tools.

OQ DATA & TOOLS

a wide range of open-source source tools to calculate earthquake risk.

KEY FEATURES

CALCULATORS AND OUTPUTS

 

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:

  • asset-specific loss exceedance curves, average annual loss, loss maps, building typology disaggregation

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Event-based risk:

  • event loss tables, loss exceedance curves - asset specific and aggregated, average annual loss, loss maps, loss disaggregation

 

Scenario hazard:

  • loss statistics, loss maps

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Scenario damage:

  • collapse maps, damage distribution per asset and building typology

HAZARD

Classical PSHA*:

  • hazard curves, hazard maps, uniform hazard spectra (UHS), disaggregation

 

Event-based hazard:

  • stochastic earthquake event sets and ground motion fields, hazard curves, hazard maps

 

Scenario hazard:

  • single event - stochastically generated ground motion fields

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Additional features:

  • 5 typologies for modeling seismic sources

  • 100+ GMPEs implemented and tested

  • Tools for harmonizing catalogs, creating seismogenic input files, analyzing strong motions and GMPEs

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