I'm surprised this isn't common knowledge. In Richmond development is built on pilings that mitigate the risk of liquifaction. As the city continues to densify the land is becoming more stable over time.
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Some degree of liquefaction can occur during an earthquake depending on the location, size and duration of an earthquake. Some homes and buildings could settle and crack and roads and other surfaces could become uneven due to soil failure. The best geotechnical information available to date indicates that there are only limited areas that are at risk of liquefaction. All new structures in Richmond are built on densified or otherwise improved ground and use foundation systems such as piles or raft slabs that are specifically designed to eliminate or mitigate the risk of liquefaction
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http://www.richmond.ca/safety/prepare/city/hazards/earthquakes.htm?PageMode=HTML
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