usage of with exported probabalistic earthquake strike/dip/rake model from [TSUMAPS](http://www.tsumaps-neam.eu/) project (following [Selva et. al, 2016](https://academic.oup.com/gji/article/205/3/1780/656379). When loading via scipy.io.loadmat, the loaded dict consists of different keys:
* **latlon**: coordinates of the grid point in latitude, longitude [deg]
* **prob**: Probability of a certain focal mechanism at a given location
size: (n_points, n_fm)
At a certain location defined by `dict['latlon'][i, :]` in latitude and longitude, the probability of occurence of a focal mechanism `dict['fm'][j, :]` defined by its strike, dip and rake is given at `dict['prob'][i, j]`.