Recent temblors-like the 2014 South Napa quake and the 2019 Ridgecrest earthquakes-have shown that unbraced and inadequately braced homes can sustain extensive damage from an earthquake, with many sliding off their support systems onto the ground or sliding enough to disrupt habitability. Unfortunately, the standards in place allow for inadequate seismic bracing systems to be installed. In California, laws were enacted after the 1994 Northridge earthquake that require new or relocated mobilehomes and manufactured homes to have earthquake bracing. But, these systems are typically not built to withstand earthquake shaking. With mobilehomes and manufactured homes, many are built on support systems to help them stay in place during normal living conditions-such as steel jacks or masonry piers, which were designed just for gravity loads. In California, it’s important to prepare for the risk of earthquake shaking for whatever type of place you call home. Download additional resources - Visit QuakeWorld GFX for configs, textures, skins, models and more.Home > Strengthen Your House > Mobilehome and Manufactured House Mobilehome and Manufactured House Retrofit.