09.7_GSN_topo_20March2017

World map of a global network of seismic stations. The map shows that seismic stations are widespread and there are many on every continent.

Global network of seismic stations. Note that this map does not show all of the world’s seismic stations, just one of the networks of stations scientists use to measure seismic activity.

http://www.iris.edu/hq/programs/gsn/maps

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