Most of the other 'HAD's were short time frame events after boiling to the point where electrical contact was broken.
Where a "short time frame" is defined as 3 to 20 hours with electrolysis, and 42 days with gas loading. And where the heat release was anywhere from 1,000 to 10,000 times beyond the limits of chemistry, in cells with virtually no chemical fuel.
Okay, if that is a short time frame . . . What would be a long time frame?