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Structural & earthquake engineering tools

I built these free, interactive tools to make earthquake and structural engineering concepts easier to understand and use, whether you're a student learning the fundamentals, an engineer checking a design, or a researcher exploring seismic risk. Everything runs directly in your browser, no downloads or sign ups needed.

Earthquake Science

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

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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AboutBackground, experience and education. YouTube ChannelVideo lessons on structural analysis and earthquake engineering. ContactQuestions, feedback, or collaboration — get in touch.