Seismic Hazards

The King County Sensitive Areas Ordinance (SAO) defines significant seismic hazard areas as those areas of King County subject to severe risk of earthquake damage as a result of seismically induced settlement or soil liquefaction. These conditions occur in areas underlain by cohesionless soils of low density, usually in association with a shallow groundwater table.金县（King County）《敏感区域条例（Sensitive Areas Ordinance, SAO）》将重大地震危险区域界定为该县内因地震诱发沉降或土壤液化（soil liquefaction）而面临严重地震破坏风险的区域。此类地质条件多发生在赋存低密度无粘性土（cohesionless soils）的区域，且通常与浅埋地下水位（shallow groundwater table）相伴出现。