The deadly fires, two of the most destructive on record in California, started Jan. 7 on a day of extremely high fire danger due to a Santa Ana windstorm. More than 27 deaths have been reported in the fires, burning in the Pacific Palisades area on the Los Angeles County coast and Altadena area northeast of Los Angeles.

Here's a look at the latest maps of the five active Southern California wildfires and what containment means when it comes to fighting fires.