The Hayward fault is a geologic fault that is capable of massive destruction and is 119 km long fault western base of hills of San Francisco and is parallel to the San Andreas fault. The occurrence of an earthquake of 6.8 magnitudes in 1868 was biggest earthquake in California history.
Recently various geologists have taken time interval of the past five large earthquakes and based on the past earthquakes data the interval of 140 years it will take to the formation of a large earthquake.
Olympia built port facilities and a lumber-based economy, which was supplemented by oyster farming, dairying, brewing, and other businesses. Built as Smithfield in 1851, it later became the location of a United States customs house and was renamed after the adjacent Olympic Mountains.
