Dot a definitive answer, but a few things to think about which may sway your decision one way or the other.

One of the basic rules of designing your database is "One Table, One Purpose", so how different is each type of event? Are we actually talking about completely different entities for each type of event?

And another rule is "The Key, the Whole Key, and nothing but the Key", so is the primary key (not a surrogate key, but the actual business key) exactly the same for each type of event?

On a more practical point, think about the query you would have to build to list all events for a person. If you have them in separate tables, you will probably have to do a UNION. If they were in the same table, you will possibly end up using CASE statements to differentiate the different types.

How messy would each way be?