Earthquake Causes Tsunami Energy accumulates in the overriding plate until it exceeds the frictional forces between the two stuck plates. When this happens, the overriding plate snaps back into an unrestrained position.
Agoura Hills is a city in Los Angeles County, California. Its population was estimated to be at 20,843 in 2014, up from 20,537 at the 2000 census.
The median age is 37, old for the San Gabriel Valley and old for the county. In Los Angeles County, Acton, Agoura Hills and Altadena have similar median ages. The percentages of residents ages 50 to 64 and 65 and older are among the county's highest.