This visualization displays recent earthquakes from the USGS feed, plotting magnitude over time. The main scatter plot uses color to categorize earthquakes by depth, with a legend that filters points on hover. A smaller context view below shows the same data for overview. The code uses D3's `scaleLinear`, `scaleOrdinal`, and `axisBottom` APIs within a custom `scatterPlot` module, and includes a tooltip showing earthquake details on mouseover.