Oh no. I was getting used to being able to buy hard drives again. :( (I feel sort of bad that "what supply chains that I care about get disrupted" is my first concern with most disasters)
Tsunami in Indonesia can affect Singapore and Malaysia (and Thailand); Singapore/Malaysia is where a lot of the undamaged HD parts plants were, after the Thai flooding. I think the Indonesian plants were for arms (used by both WD and Seagate).
Also, a lot of other electronics assembly happens in Indonesia.