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California hospitals are assigned seismic SPC ratings; presenter says most meet top standard
Summary
A presenter explained Californias structural performance category (SPC) system for acute-care hospital buildings, saying SPCs run from 1 to 5, most hospitals meet SPC-5, less than 1% are SPC-1, and SPC-1 facilities cannot provide general acute care; a full list is on the presenters website.
"Have you ever walked into a hospital and wondered to yourself, could it withstand a powerful earthquake?" an unidentified presenter asked, using the question to introduce California's system for rating hospital buildingsearthquake resilience.
The presenter said California assigns each acute-care hospital building a structural performance category, or SPC, on a scale from 1 to 5 to assess the risk of collapse for structural elements such as beams, columns, shear walls, slabs and foundations after a strong earthquake. SPC-1 denotes the highest risk and SPC-5 denotes the strongest post-quake serviceability.
Why it matters: SPC ratings indicate how likely a hospital building is to remain functional and safe after a major quake. According to the presenter, SPC-1 buildings "pose a significant risk of collapse and danger to the public," while SPC-2 buildings may not present immediate life-safety hazards but could be unrepairable or nonfunctional after strong ground motion. SPC-3 and SPC-4 buildings comply with California's hospital seismic safety standards but may sustain structural damage that inhibits service delivery. SPC-5 buildings are described as reasonably capable of providing services following a strong earthquake.
The presenter also provided a prevalence statement: most California hospital buildings meet SPC-5 standards and "less than 1% of hospital buildings are SPC-1." The presenter added that SPC-1 buildings are no longer allowed to provide general acute care services in the state.
The presentation closed with a practical note: listeners seeking a specific building's rating were told a complete list is available on the presenter's website.
The remarks were delivered as an informational summary of the SPC framework and did not record any formal actions, votes, or named speakers beyond the unidentified presenter.
