That is the question. It was a harden facility. Not a run down Temple. It is possible the Facility did survive that blast, but what condition it was in is really what I want to know.
In comparison there are concrete buildings that were still standing at Ground Zero in Hiroshima. So It is very conceivable that a Hardened Imperial Facility might have a chance. I doubt any of the personnel survived, but that does not mean the facility isn't there.