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LA County Hazards

Los Angeles County Operational Area (OA) includes more than 4,000 square miles and has 88 cities in its borders and a population of more than 10 million. The OA has experienced major emergencies such as earthquakes, wildland fires, floods and civil unrest. In the 1990’s Los Angeles County was one of the most disaster-prone areas of the United States. Declared disasters in the 1990 are:

FLOODS - February 1992

RIOTS - April 1992

FLOODS - January-February 1993

FIRES - October-November 1993

EARTHQUAKE - January 1994

FLOODS - January-March 1995

FIRES - October 1996

WINDSTORMS - January 1997

FLOODS - February 1998

Recent Earthquake Events
Year
Earthquake Event
Magnitude
1933
Long Beach Earthquake
6.4
1987
Whittier Narrows Earthquake
5.9
1991
Landers Earthquake
7.3
1992
Big Bear Aftershock (Landers)
6.4
1991
Sierra Madre Earthquake
5.8
1994
Northridge Earthquake
6.7

Click here to see a listing of all State and federally declared disasters in Los Angeles County since 1950. Information provided the California Office of Emergency Services.

Preparedness


Because the region is subject to a number of natural disasters, the County of Los Angeles, in coordination with other California counties and non-profit agencies, has developed the Emergency Survival Program (ESP). For more information on the award-winning ESP program, please click here.