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  2. Alquist Priolo Special Studies Zone Act - Wikipedia

    en.wikipedia.org/wiki/Alquist_Priolo_Special...

    3) It prohibits new construction of houses within these zones unless a comprehensive geologic investigation shows that the fault does not pose a hazard to the proposed structure. The act was one of several that changed building codes and practices to improve earthquake safety. These changes are intended to reduce the damage from future earthquakes.

  3. Eurocode 8: Design of structures for earthquake resistance

    en.wikipedia.org/wiki/Eurocode_8:_Design_of...

    EN 1998-5 establishes the requirements, criteria, and rules for the siting and foundation soil of structures for earthquake resistance. It covers the design of different foundation systems, the design of earth retaining structures and soil-structure interaction under seismic actions.

  4. Seismic zone - Wikipedia

    en.wikipedia.org/wiki/Seismic_zone

    Earthquake epicenters 1963–98. In seismology, a seismic zone or seismic belt is an area of seismicity potentially sharing a common cause. It can be referred to as an earthquake belt as well. It may also be a region on a map for which a common areal rate of seismicity is assumed for the purpose of calculating probabilistic ground motions.

  5. Earthquake-resistant structures - Wikipedia

    en.wikipedia.org/wiki/Earthquake-resistant...

    "NEESWood aims to develop a new seismic design philosophy that will provide the necessary mechanisms to safely increase the height of wood-frame structures in active seismic zones of the United States, as well as mitigate earthquake damage to low-rise wood-frame structures," said Rosowsky, Department of Civil Engineering at Texas A&M University ...

  6. Earthquake engineering - Wikipedia

    en.wikipedia.org/wiki/Earthquake_engineering

    Seismic performance assessment or seismic structural analysis is a powerful tool of earthquake engineering which utilizes detailed modelling of the structure together with methods of structural analysis to gain a better understanding of seismic performance of building and non-building structures. The technique as a formal concept is a ...

  7. Researchers gain clearest picture yet of fault that threatens ...

    www.aol.com/news/big-one-researchers-gain...

    Over the past century, scientists have only observed five magnitude-9.0 or higher earthquakes — all megathrust temblors like the one predicted for the Cascadia Subduction Zone.

  8. Seismic code - Wikipedia

    en.wikipedia.org/wiki/Seismic_code

    The 1948 seismic codes were prepared in consideration of the seismic zone map. A new code was revised in 1961 and in 1963, the seismic zonation map was updated with four hazard levels based on predicted shaking on the Modified Mercalli intensity scale. It was subsequently added a fifth hazard level in the 1972 revision. [12]

  9. Seismic hazard - Wikipedia

    en.wikipedia.org/wiki/Seismic_hazard

    Surface motion map for a hypothetical earthquake on the northern portion of the Hayward Fault Zone and its presumed northern extension, the Rodgers Creek Fault Zone. A seismic hazard is the probability that an earthquake will occur in a given geographic area, within a given window of time, and with ground motion intensity exceeding a given threshold.