{"version":"1.0","type":"rich","title":"Significant Earthquake in World: 1970-2019","description":"This visualization maps significant earthquakes from 1970 to 2019 on a world map, with bubble size encoding focal depth and color distinguishing tsunami-generating events. Hovering a point filters the display to that event type and reveals its coordinates. The React app uses d3.geoNaturalEarth1 and d3.geoPath to render landmasses from World Atlas TopoJSON, while d3.scaleSqrt and d3.scaleOrdinal map earthquake attributes. Data comes from the NOAA Significant Earthquake Database, loaded via d3.csv.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/8a485bf679fd4efb98812f9af0c02e5f?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}