Geoscience Australia have confirmed a large bang that was felt right across Perth's southern suburbs was not an earthquake.
The explosion happened just before 11.30am on Wednesday with hundreds of people reporting their houses shook.
Affected suburbs include Mandurah, Secret Harbour, Rockingham, Baldivis, Kwinana and surrounding areas.
A Geoscience Australia spokesperson said their seismologists have not detected any recent earthquakes.
The investigation continues into what caused the loud explosion.
Bridgetown artist takes out top prize in 2025 Rockingham Castaways Sculpture Awards
'I am deeply sorry': WA Governor formally apologises over 1834 Pinjarra Massacre
Port Kennedy man charged with reckless driving after youths spotted hanging out car windows
Peel region businesses, organisations encouraged to apply for new round of RED grants
Record breaking attendance at Luca's Legacy clean-up with 500kg of rubbish removed from Mandurah's waterways
Mandurah Police continue search for missing man
New mural unveiled at Austin Lakes Baptist College
MARC staff recognised at 2025 Royal Life Saving WA Bravery Awards
Hefty fines for local fisherman after catching pink snappers out of season