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The following charts and statistics are taken from ABAG´s publication Shaken Awake! Estimated damages are from earthquake forces only and do not
include losses due to secondary disasters such as fires.
- Hayward fault - The number of uninhabitable homes and the number of people made homeless following an expected 7.3 earthquake
along the Hayward fault.
- Peninsula Segment of the San Andreas fault - The number of uninhabitable homes and the number of people made homeless following an expected 7.1 earthquake along the Peninsula Segment of the San Andreas fault.
Estimated Damage from Hayward Fault Earthquake
The effects of an earthquake along the Hayward fault will be overwhelming due to the shear numbers of people losing their homes. See the following charts. Estimated housing losses will be
staggering. More than 370,000 people will be displaced, with San Francisco and Alameda counties generating over 81% of this total.
Over 16% of the multi-family housing in the entire Bay Area will become uninhabitable. Alameda County will be hardest hit with over 16% of that county´s total housing being lost. The devastating damage estimated for unreinforced masonry buildings shows their vulnerability; over the entire Bay Area almost 55% will be uninhabitable, while in Alameda County an astonishing 92% of the unreinforced masonry buildings will become uninhabitable.
The following chart shows the estimates of uninhabitable homes following a 7.3 quake on the Hayward fault:
This chart shows the estimates of people made homeless after a 7.3 quake.
Research shows that retrofitting could cut these total loses by 90%. See the article at A Ture Story and the FAQ How much does retrofitting help?
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Estimated Damage from the Peninsula Segment of a San Andreas Fault Earthquake
Of the nearly 109,000 people expected to lose their homes from an earthquake on the peninsula segment of the San Andreas fault, more than 40
% will be in San Francisco. See the following charts. Even though the County of San Mateo is closer to the fault line than San Francisco County, San Francisco will have 6% of the county´s total housing rendered uninhabitable
while San Mateo will lose over 5%. This shows the devastating effect an earthquake will have on the denser population and older, more vulnerable housing of San Francisco
The following chart shows the estimates of uninhabitable homes following a 7.1 quake on the Peninsula Segment of the San Andreas fault:
This chart shows the estimates of people made homeless after a 7.1 quake
Research shows that retrofitting could cut these total loses by 90%. See the article at A True Story and the FAQ How much does retrofitting help?
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