http://ngm.nationalgeographic.com/geopedia
It's a research tool with valuable links to the best resources. Ask our experts a question, share a link, or contribute your story ideas.
http://www.lib.utexas.edu/maps/historical/index.html
Perry-CastaƱeda Map Collection - Universtiy of Texas Library Online
http://www.iris.edu/dms/seismon.htm
Seismic Monitor allows you to monitor global earthquakes in near real-time, visit seismic stations around the world, and search the web for earthquake or region-related information. You can also view seismograms and make dataset requests
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