{"version":"1.0","type":"rich","title":"Earthquake Choropleth Map","description":"This choropleth map visualizes the number of earthquakes recorded in U.S. states, using a logarithmic color scale to represent data from a CSV dataset of state earthquake counts. The map renders U.S. state boundaries via `d3.geoPath` with a `d3.geoAlbersUsa` projection, using TopoJSON data for the geographic shapes and `d3.scaleThreshold` with the `d3.schemeOrRd` color scheme. Hover interactions are implemented through a d3-tip tooltip, while state styling changes on mouseover through CSS-based `:hover` rules.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/2a673511b8ce47fcb8faaf597085bb1a?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}