Friday, March 23, 2012

Maps of Recent Earthquakes

CLICK HERE to see the location of earthquakes over the past 7 days. The interactive map shows worldwide earthquakes with M4.5+ (earthquakes with M2.5+ within the United States and adjacent areas). Colors of the boxes indicate when recent the quakes occurred and the size of the boxes tells the magnitudes. You can zoom in to look at specific areas, and then click on the boxes to learn details. Students will notice the strong correlation between earthquakes and plate boundaries. The site is provided by the the European-Mediterranean Seismological Centre.

By the way, did you know we haven't been using the Richter Scale since 2002? CLICK HERE to find out more.

Here's another resource, posted by Mark Colberg, Associate Prof. of Geol. at Southern Utah University. Colberg's web page outlines the basic principles of earthquakes and provides links to the best animations of seismic waves that I've seen. CLICK HERE to view the page and then scroll down to access the animations.

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