Increase in Earthquake Probabilities in Southern California

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The earthquake viewer tool can be used to plot contours of equal probability (chance of an earthquake) globally, as well as regionally in California and Japan.  The global forecast is a lower resolution forecast for earthquakes having magnitudes M>6.5 within the next year from today.  The regional higher resolution forecast for California is for earthquakes having magnitudes M>5 within 1 year from today.

A comparison of screenshots from September 29, 2012 and Today, October 18, 2012, shows that the contours of probability are changing.  Increases in probablity are seen for areas centered on the Elsinore fault south of Los Angeles, and for the San Andreas fault north of the Salton Sea.  Other changes can be seen in other areas of the map.  The red boxes highlight these changes.