Cause of mystery explosion that shook parts of Perth revealed  9NewsSingaporean F15s capable of sonic boom flying over Perth as 'huge rumble' felt  ABC NewsPerth explosion: Residents claim to have felt earthquake-like tremors across southern suburbs  The West AustralianWA news LIVE: Residents report mysterious ‘explosion’ in Perth’s south; A WA couple went out to buy a hot chook. They became millionaires instead  The Age‘Whole house shaking’: Wild boom rocks city  news.com.au