arashnassirpour.com — Engineering Tools Hub
Live site: https://arashnassirpour.com/
The GitHub Pages user site for Arash Nassirpour, providing a single landing page and shared navigation for a collection of public earthquake, structural-engineering, and catastrophe-risk tools.
Published tools
| Path | Repository | Purpose |
|---|
/ | arashnass.github.io | Main hub |
/earthquake-rupture/ | earthquake-rupture | Interactive 3D fault-mechanism visualisation |
/world-faults/ | world-faults | Global faults, plate boundaries, and recent earthquakes |
/earthquake-dashboard/ | earthquake-dashboard | Hourly rapid-earthquake briefing |
/modal-analysis/ | modal-analysis | Shear-building modal analysis |
/building-response/ | building-response | Educational building-response simulation |
/design-spectrum/ | design-spectrum | International seismic design-spectrum generator |
/performance-point-evaluator/ | performance-point-evaluator | N2 capacity-spectrum performance-point evaluation |
/ground-motion/ | ground-motion | Ground motion processing, intensity measures and response spectra |
/rc-section-designer/ | rc-section-designer | Reinforced-concrete section analysis and checks |
/hazus/ | hazus | Hazus vulnerability and fragility explorer |
/hazard-sequence-simulator/ | hazard-sequence-simulator | Compound-hazard and interrupted-recovery simulation |
/material-behaviour-explorer/ | material-behaviour-explorer | Interactive material stress-strain relationships |
/slope-seismic-vulnerability/ | slope-seismic-vulnerability | Newmark sliding-block displacement fragility and vulnerability for tailings dams and pit slopes |
Most tools are maintained in their own repository with GitHub Pages enabled independently; because those repositories' Pages sites inherit this site's verified arashnassirpour.com custom domain, they are served beneath the paths shown above without duplicated content here. hazus and rc-section-designer are the exception: their source repositories are private, their own Pages sites are disabled, and their built output is published from copies committed directly in this repository.
Repository contents
index.html — landing page and project cards.CNAME — custom-domain configuration.404.html — fallback page.robots.txt and sitemap.xml — search-engine discovery.sentinel/ — the optional Sentinel mission-control theme (CSS, JS, loader and audit script) shared by the live pages: the earthquake dashboard, the global-faults globe and its statistics page. See sentinel/README.md.llms.txt — plain-text summary for AI search tools.indexnow.sh — notifies Bing and other IndexNow search engines when pages change.about/ — about page.contact/ — contact page.hazus/ — built copy of the Hazus Vulnerability Explorer (source lives in the hazus repo; not auto-synced).rc-section-designer/ — built copy of SectionForge (source lives in the rc-section-designer repo; not auto-synced).earthquake_rupture/, world_faults/, and dashboard/ — redirects from legacy Netlify-era paths.
Commits to main are published automatically by GitHub Pages. Note that hazus/ and rc-section-designer/ require a manual rebuild-and-copy from their source repos whenever those tools change; they do not update automatically.
Licence
Copyright (C) 2026 Arash Nassirpour.
Licensed under the GNU Affero General Public License v3.0 only (AGPL-3.0-only). See LICENSE.
Search submissions
./indexnow.sh reads canonical URLs directly from sitemap.xml and notifies IndexNow engines. Use ./indexnow.sh --dry-run to inspect the payload, or pass paths such as /fun/shahnameh/. Non-HTTPS, foreign-host and query/fragment URLs are rejected; unsuccessful submissions return a nonzero exit code. A successful submission confirms receipt, not indexing.
Engagement and field performance
Shared /assets/engagement.js records input-free action names, successful user-triggered calculations, prepared exports, related-tool navigation and contact clicks. Initial defaults, local/debug/audit visits, DNT/GPC requests and untrusted synthetic interactions do not create engagement events. Numerical results, input values, uploaded filenames and contact addresses are never event parameters.
/assets/vitals.js uses the vendored official web-vitals library to send actual LCP, INP and CLS field measurements to GA4. LCP/INP are milliseconds; CLS is a unitless score. These are measurements, not a Lighthouse score. The library version and license are in assets/vendor/.
Run metrics tests with node tests/platform-metrics.cjs. The canonical sitemap remains the source for IndexNow submissions.
