The slide near Burnaby Mountain forced the evacuation of six homes after a retaining wall failed.
Chris Bryan with the City of Burnaby says about 20 metres of a five to six-metre high wall gave way, damaging a garage on the adjacent property below.
He says a geotechnical engineer has been called in to determine if there is any further risk to the nearby homes.
The River Forecast Centre issued high streamflow advisories for rivers and streams on much of the west coast, including the North Shore, Fraser Valley and the southern end of Vancouver Island.
The warning means river levels are rising or are expected to rise rapidly and minor flooding may occur in low-lying areas
Total rain or snowfall in Metro Vancouver for January so far comes to 155.6 millimetres, compared with 164.2 millimetres for all of December.
Environment Canada said an intense frontal system moving through the south coast on Wednesday and Thursday brought heavy rain that caused flash floods and pooling water. Numerous streets in Metro Vancouver were closed off Thursday as water rose when storm drains were overwhelmed.