The Importance of Earthquake-Resistant House Design and Shape
04/13/2023
Plan | Stay Safe • Earthquakes
Your home’s shape and design has a lot to do with how it can resist an earthquake. New homes and existing homes can be modified to be more resistant to seismic forces.
What do I need to know?
- Certain house locations, such as homes built on hillsides, can be more vulnerable.
- Types of soils can amplify ground motions.
- Houses built at the base of hills or mountains can be affected by landslides or rock falls
- Houses with irregularities in wall layout or overall shape can be more susceptible to damage during earthquakes.
- Cripple walls, the walls that support the main structure above grade or a basement, can be weak points if not designed and built properly.
- Living areas above garages may need enhanced design due to the large opening of the garage door area.
- Unbraced pier-and-post foundations, or unreinforced masonry walls or foundations, can be vulnerable aspects in a home.
Where do I start?
- If you live in a mobile home, consider an earthquake-resistant bracing system.
- Brace cripple walls and ensure that garages with living areas above can support the additional forces.
- Consider the configuration of a home in new construction and story heights on any multi-story buildings.
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