Table of Contents
- Mapping Earthquakes in Northern California
- Setting Up Your Workspace
- Downloading Data from Natural Earth
- Download Data from the Northern California Earthquake Data Center (NCEDC)
- Skill Drill: Download Data from the United States Census Bureau
- Adding California as a Basemap Layer
- Skill Drill: Adding the Humboldt County Boundary as a Basemap Layer
- Adding XY Data
- Changing the Map Projection of the Data Frame
- Representing Earthquake Magnitude Using Graduated Symbols
- Changing the Map Size and Position
- Creating an Inset Map
- Inserting A Map Title
- Inserting a Map Legend
- Inserting a North Arrow, Scale Bar, and Acknowledgments
- Exporting your map as a PDF file
Skill Drill: Download Data from the United States Census Bureau
In a previous activity, you learned how to download data from the United States Census Bureau. Open the Chrome browser and navigate to the United States Census Bureau Cartographic Boundary Shapefile page at https://www.census.gov/geo/maps-data/data/tiger-cart-boundary.html.
If you do not have the Chrome browser, you can download it here.
Click the link under the header Nation-based Files that says County. On the Counties page, right-click the link to download the 500K resolution. Select, Save Link As, then browse to your Original folder and click Save. Decompress the file using 7zip. Be sure to delete the zip files when you are done decompressing them. You won’t need them anymore. Eliminating them saves space and helps to avoid confusion later.