To most geotechnical engineers the word analysis implies numerical assessment but before you can do that you need to be able to come up with an appropriate and realistic geological model to which you can start to put numbers.

When landslides occur in engineered slopes, it is commonly found that the models were wrong - geological and hydrogeological although quite often there are also errors in the quantification of representative parameters.

At a broader scale, it may be appropriate to carry out some kind of risk analysis to identify where the greatest hazards and consequences are, so that money can be spent wisely in mitigation.