# What should I do if the residuals of my ARIMA models are not normal?

My data is about the number of earthquakes with magnitude greater than or equal to 7 that have occurred from 1912-2013. The Jarque-Bera test shows that the residuals of arima models are not equal. What should I do? I am using E-views to analyze my data. Below is the descriptive stat of ARI(4,1)

Another thing I would recommend you to do would be a closer analysis in which way the resdiuals deviate from normal. Are the skew? Do they have heavy tails? You can make a time-series plot of your residuals in order to see, whether there is a general structure in your data that your model does not cover. You can create a qqplot in order to look for heavy tails and you can plot a kernel density estimate of your residuals against a normal distribution with $\mu=0$ and $\sigma^2$ equal to the variance of your residuals in order to get some general impression how your residuals deviate.