ConsistentHashingGroup - detecting failing node in cluster

I have a question about consistent hashing:

I am using ConsistentHashingGroup and I would like to be notified when Akka node in the cluster that had routees for the group went down.
Is there any way to do so without subscribing to cluster events? What is the best way of finding which routees where placed on the crashed node?
I would like to that to recover data for those routees from persistent storage.

I think subscribing to cluster events is the way to do this.