The federal maps apply to land that has been determined to be subject to a so-called 100-year flood, which means there is a 1% chance that a flood of its size will happen during any given year.

An aerial view of the Los Angeles River west of DeForest Park in North Long Beach. A new UCI study warns that this area would be innundated in a one-in-100-year flood.

Two months after deadly wildfires razed thousands of homes in the Los Angeles area, Cal Fire has released a new map showing fire hazard severity zones for the entire state. The maps were developed ...

But the flood risk in Los Angeles is much greater than what the latest storm delivered, according to a study published in October. ... a greater impact than federal flood zones suggest.

LOS ANGELES (CBSLA) - Experts say a large tsunami could one day flood sizeable areas of Marina del Rey and Long Beach to an elevation of 15 feet, potentially threatening homes and lives.

Los Angeles city officials have said the city had held public workshops on flood risks and was working to update its flood hazard maps. Los Angeles County Supervisor Janice Hahn, whose district ...

Study: Los Angeles’ major flood risk is much higher than previously thought A 'hundred-year flood' would disproportionately affect the county's Black communities.

Study: Los Angeles’ major flood risk is much higher than previously thought A 'hundred-year flood' would disproportionately affect the county's Black communities.