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Structural & earthquake engineering tools

Free, interactive tools for students, engineers and researchers. All tools run in your browser, with no downloads or sign-up.

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Earthquake Science

Fault MechanismA fault moving in 3D — strike, dip and rake. Global Faults & Live EarthquakesPlate boundaries, named faults, recent quakes.Live data Rapid Earthquake
ResponseLive briefing of the largest recent events.Live data Earthquake StatisticsMagnitudes, daily activity, depths, swarms and volcanoes.Live data

Catastrophe Risk

Vulnerability ExplorerFlood, wind and earthquake damage functions. Hazard Sequence SimulatorEarthquake, aftershock, rainfall and landslide cascades during recovery. Slope Seismic VulnerabilityNewmark displacement, fragility and vulnerability for tailings dams and pit slopes.

Structural Analysis

Reinforced Concrete Section DesignerN-M interaction and code checks for RC sections. Modal Analysis CalculatorMode shapes, periods and frequencies for structural systems. Seismic Design Spectrum GeneratorGenerate and compare spectra across international seismic codes. Performance Point EvaluatorEvaluate seismic capacity and demand using the N2 method in ADRS format. Ground Motion AnalyzerProcess acceleration records and compare response spectra with seismic-code targets. Building Response LabSimulate structural response to ground motion in real time. Material Behaviour ExplorerStress-strain curves for concrete, steel, timber, masonry and FRP.
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