Changes in Forecast Contours in Southern California

john's picture

If you are a regular visitor to this site, you can track the change in earthquake probability in regions such as southern California by the simple technique of taking screen shots and then comparing images from different dates.  Below I show two screen shots of forecast probabilities for two dates, 9/29/2012 and 10/29/2012.  I use the forecast for M>5 within 1 year from the date indicated.  Boxes show regions where the forecast has changed over 1 month's time from 9/29/2012 to 10/29/2012.



DavidAlexander's picture

These are not just small changes, they are really big. I have read from how earthquakes can change the geographical landscape within seconds. But, this is something of a real or live example. Great study and I have learnt a lot from it.

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