The earliest known earthquake was documented in 1769 by the Spanish explorers and Catholic missionaries of the PortolÃ¡ expedition as they traveled northward from San Diego along the Santa Ana River near the present site of Los Angeles.
ABC News reports that the average retired worker in 2014 received $1,294 per month in Social Security earnings, while the average couple received $2,111. The benefit amount varies depending on the amount paid in and the age of retirement.
Here is the median income for households 65 and over, and how that compares with the median income of households headed by workers 45 to 64. Retired households earn an average of $35,107 a year, or just 57.41% of what the average pre-retirement household earns.