ABC News | Earthquake shakes Perth and WA's south after hitting Lake Muir, 'moving and rumbling' houses ABC News A magnitude-5.4 earthquake has hit the Lake Muir area of Western Australia, about 330 kilometres from Perth, with residents across the state's south-west feeling its effects. Key points: It's the second large earthquake to strike the Lake Muir area in ... Western Australia hit by 5.0-magnitude earthquake Earthquake at Lake Muir shakes Perth and WA's South West WA residents wake with a shake as 5.4 magnitude earthquake hits |