Probabilistic Earthquake Source
This is simply a list of mutually exclusive Probabilistic Earthquake Ruptures.
For example, a Probabilistic Earthquake Source might represent a particular fault, and the list of Probabilistic Earthquake Ruptures would represent the various Magnitude/Rupture Surface possibilities on that fault. By "mutually exclusive" we mean that one (and only one) of these Probabilistic Earthquake Ruptures can represent a given occurrance of the Probabilistic Earthquake Source.
A Probabilistic Earthquake Source can also provide the following information:
A Probabilistic Earthquake Source is always defined in the context of an ERF, so the event probabilities are with respect to the Time Span associated with that ERF.