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Earthquakes

  • Bolt sill plate to foundation
  • Reinforce crawl space or “cripple” walls under floor joists
  • Connect rim joists to top plates with metal brackets
  • Anchor large equipment
  • Use flexible connections on gas and water lines
  • Brace large openings on lower story6
  • Brace heavy exterior elements7

6“What You Can Do”, Structural Engineers Association of Northern California, 25 Jan 2007.

7 “FEMA Hazard Mitigation Handbook Series”, Conservationtech, 01  Feb 2007.

Bolt Sill Plates to Foundation illustration. (www.fema.gov)

Earthquakes, Magnitude 3.5 and Greater, 1974-2003. (Earthquake Hazard Program, www.usgs.com)

Earthquake Home Hazard Hunt. (www.fema.gov)


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