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Last edited Mar 14, 2017

Created on Mar 14, 2017

This example shows a bar chart of earthquake magnitudes over time, using data fetched from the USGS earthquake feed. A bar is drawn for each recorded earthquake, with its height corresponding to the magnitude value. The visualization is built with D3 v4, using `d3.scaleBand` for the x-axis time categories, `d3.scaleLinear` for the y-axis magnitude range, and SVG rectangles styled with a steelblue fill. The axes are rendered via `d3.axisBottom` and `d3.axisLeft`.

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