This scatterplot displays the frequency of earthquakes by year, with circles positioned along the x-axis for year and the y-axis for the number of quakes in a magnitude range. It uses D3 v5 with SVG rendering and scales via `d3.scaleLinear` and `d3.extent`. Axes are drawn with `d3.axisBottom` and `d3.axisLeft`, while data loads from a CSV using `d3.csv`. The visualization highlights trends in seismic activity over time.