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Class 5

✓ Published0🌍 Public
MMTClass
Last edited Mar 14, 2017
Created on Mar 14, 2017

This visualization displays earthquake locations across the United States from the USGS live feed, with each quake colored by magnitude using a d3.scaleOrdinal color scale. State boundaries render as gray paths via TopoJSON and d3.geoPath with an AlbersUSA projection. A legend with circles shows magnitude ranges and counts, while hovering reveals coordinates through d3.mouse and projection.invert. The map filters quakes to viewport-visible coordinates and removes legend entries exceeding the largest observed magnitude.

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