This scatter plot displays the magnitude and timing of earthquakes over a seven-day period, with depth categorized into shallow, intermediate, and deep levels using red, blue, and green from a D3 ordinal scale. The visualization uses `scaleTime` for the x-axis and `scaleLinear` for the y-axis, rendering circles with fill colors derived from depth categories. A legend generated via SVG groups clarifies the color mapping, while the code imports utilities from `@curran/axis-labels` and loads earthquake data from `@Ljz2018/earthquake`.