A new map released by the California Department of Conservation shows seismic hazard zones for certain areas of San Mateo and Contra Costa counties, specifically liquefaction and landslide zones.
The California Geological Survey map shows earthquake zones for Contra Costa County includes all or parts of Pittsburg, Antioch, Concord, Brentwood, Oakley and Bay Point.
Zones for San Mateo County include Woodside, San Carlos, Belmont, Burlingame, Half Moon Bay, Hillsborough, Millbrae, Redwood City, San Bruno, San Carlos, Portola Valley and Pacifica.
“The program initially focused on the greater Los Angeles area and San Francisco and is now working on other highly populated, seismically active areas,” Don Drysdale of the California Department of Conservation, which oversees the program, told the San Jose Mercury News.
The maps are not meant to alarm current or future residents of those areas, but to help them prepare and reinforce their homes before the next earthquake hits, according to officials.
CORRECTION (April 9, 2019, 7:45 a.m. PST): The previous version of this story misstated the agency that provided the map.