{"version":"1.0","type":"rich","title":"Earthquake Choropleth Map","description":"This choropleth map visualizes earthquake counts across U.S. states, using the Albers USA projection and a threshold color scale with a sequential orange-red scheme. The map applies logarithmic scaling to earthquake totals to enhance color distinction, with states colored via `d3.scaleThreshold` and `d3.geoPath` for rendering. Data is loaded from a CSV of state earthquake records and a TopoJSON file of U.S. boundaries, processed with `topojson.feature`. Hovering highlights states in red, though the tooltip code is incomplete and non-functional.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/7206dd9f499e46bd8e107041bf502a46?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}