Global Earthquake Explorer

Interactive globe and flat-map visualization of 28,579 USGS seismic events (Mar 2025–Mar 2026). Three tabs: draggable orthographic globe with zoom, Natural Earth flat map with zoom and pan, and continent dashboard with 7 KPIs and 6 charts. Sequential pulse animation, client-side filters, hover tooltips, and high-res land polygons from land_geojson. Dashboard aggregations run client-side for instant continent tab switching.