class-02 demo

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Last edited Mar 15, 2017

Created on Mar 15, 2017

This example shows a map of Oklahoma with earthquake locations plotted as semi-transparent crimson points, sized by their position on the map. The visualization filters earthquake data to only include events with a magnitude of 2.5 or greater. It uses d3 v4's `d3.geoAlbersUsa` projection and `d3.geoPath` to render SVG paths for state and county boundaries, sourced from TopoJSON data, while earthquake data comes from the USGS feed.

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