Bushfire threatening lives in Riverslea, Margaret River A BUSHFIRE is burning out of control and threatening lives and homes in WA's South West. A watch and act alert has been issued by the Department of Fire and Emergency Services for a fire at Riverslea, near Margaret River. Residents need to leave or get ready to actively defend. The fire is moving in a northerly direction at 300m an hour towards Birch Loop, Banksia Chase and Tingle Avenue with flames up to five metres high. The fire was reported at 10.40am, and the cause is unknown.