Emergency services identified that the pong was coming from a pungent durian fruit.
"We are open!" a post on the university library's Facebook page stated. "The lingering gas-like smell in the building is completely safe – someone left a durian fruit in one of our bins! Very sneaky."
Considered the "king of fruits" in many South-east Asian countries, the distinctive odour of durian is very divisive – food writer Richard Sterling once described it as "turpentine and onions, garnished with a gym sock".
This is the second time in a year that a durian has led to the mass evacuation of a university library in Australia.
In 2018, 600 staff and students at the RMIT campus in Melbourne's central business district were evacuated as 40 firefighters and a specialist crew searched the building for a suspected gas leak.
In November last year a flight was also grounded in Indonesia after fights broke out over a two-tonne cargo of pungent durian.
Passengers on the Sriwijaya Air flight from Bengkulu province in Sumatra to Jakarta on November 5 complained to cabin crew after smelling the fruit and refused to board the flight, the ABC reported.