The book about this event is “Catastrophe”, written back aways. The author thinks the volcanoe that blew was in the area where Krakatau is now, and argued the eruption severed Java from Sumatra and created the Sunda Straits.
Well, the abstract for the paper doesn’t say anything about candidate volcanoes. I’ll have to read the whole thing when I stop by the library.
Krakatau was proposed as a candidate and a PBS documentary made about “Catastrophe” but it’s not generally accepted.
I think there are some other 535 candidates, wikipedia mentions Rabaul caldera in the Solomons as a candidate.