Presentation is loading. Please wait.

Presentation is loading. Please wait.

Testing Earthquake Forecasts David D. Jackson Yan Y. Kagan Yufang Rong.

Similar presentations


Presentation on theme: "Testing Earthquake Forecasts David D. Jackson Yan Y. Kagan Yufang Rong."— Presentation transcript:

1 Testing Earthquake Forecasts David D. Jackson Yan Y. Kagan Yufang Rong

2 Types of test Prospective: all parameters and rules set Retrospective; adustments made to fit data better Pseudo-prospective Learning and test periods Qualitative adjustments may be made

3 What to test Number of events Magnitude distribution of those events Locations of those events

4 Smoothed seismicity forecast test

5 Concentration plot of the earthquake potential model and actual earthquakes

6 Number test and Likelihood test The forecast passed the tests at 95% confidence level.


Download ppt "Testing Earthquake Forecasts David D. Jackson Yan Y. Kagan Yufang Rong."

Similar presentations


Ads by Google