If you wanted, you could call it a major disruption. I don't know exactly what makes an event a "real disaster", but I agree that suddenly being isolated from

If you wanted, you could call it a major disruption. I don't know exactly what makes an event a "real disaster", but I agree that suddenly being isolated from your family is a significant event, and if anyone wanted to belittle your characterisation, they should probably recallibrate their understanding of the world. (And they should also be careful to distinguish their oughts and their is-es.)