
The mysterious sound was heard in the Auckland suburbs of Onehunga and Mangere Bridge on Sunday night.
The mammoth bang was heard by residents in the suburbs of Onehunga and Mangere Bridge about 10.30pm on Sunday. One reader who wrote in to the Herald said they could feel the house shake.
The scary noise sounded "super sonic" and no one knew what it was, the woman said.
Residents turned to Twitter to find the source of the mysterious noise - but no clues have turned up yet. Dean Taylor tweeted: "What was that Big Bang in Onehunga just now?" Twitter user Peter Tainui said it might have been related to the mystery bang or explosion heard in the same area a couple of weeks ago. "What/who the hell is the cause?" he asked.
Another loud bang stumped residents in the Onehunga, Three Kings, Mt Roskill, Epsom and Mt Albert area on May 30. One Twitter user at the time said it sounded like a loud boom, thunder or an explosion.















Comment: See also: Mysterious bangs heard in Auckland