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seismic safety

Mandatory Earthquake Retrofit Proposal Advances Quickly in San Francisco City Hall

Noah Arroyo, SF Public Press — Feb 5 2013 - 5:38pm

San Francisco Supervisor David Chiu Tuesday unveiled legislation to make seismic retrofits mandatory for so-called soft-story buildings throughout the city. Chiu called the proposal to make retrofitting mandatory in stages by 2020 the “next major step to ensure that we are prepared for the next big one.” He said he expected a major quake, which could happen anytime, could be two to three times stronger than the 1989 Loma Prieta quake that destroyed 7,000 buildings statewide. (Listen to Public Press reporter Noah Arroyo on KQED Radio’s “Forum”)

San Francisco Would Post Signs Warning of Earthquake Risk on Buildings Whose Owners Fail to Retrofit

Noah Arroyo, SF Public Press — Feb 5 2013 - 11:05am

A plan being unveiled Tuesday in San Francisco would require the city to inform the owners of thousands of potentially earthquake-unsafe buildings that they need to retrofit at their own cost or demonstrate why not. If they don’t comply, the city would post a scarlet-letter sign on the property: “This building is in violation of the requirements of the San Francisco Building Code regarding earthquake safety.” (Listen to Public Press reporter Noah Arroyo on KQED Radio’s “Forum”)

No One Wants to Go First: S.F.'s Retrofit Timeline

Noah Arroyo, SF Public Press — Jan 10 2013 - 12:08pm

This story appeared in the Winter 2012-2013 print edition of the San Francisco Public Press.

A plan to require seismic retrofits on as many as 3,000 “soft-story” buildings in San Francisco can’t be executed all at once, experts say, because there aren’t enough engineers and contractors who know how to do the work. So city officials are developing a system of triage: Deal with the most dangerous buildings with the most people in them first. 

Sand and silt require $137 million fix for Treasure Island

Victoria Schlesinger, SF Public Press — Jun 29 2010 - 4:32pm

There is a high probability that a Loma Prieta magnitude or greater earthquake will shake the Bay Area during the projected 18-year redevelopment of Treasure Island. However, city development officials say the island will ultimately be safer than the liquefaction-prone areas of downtown San Francisco and the Marina.

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