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Seismic Ratings and Collapse Probabilities of California Hospitals

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Punch Card table of the Seismic Ratings and Collapse Probabilities of California Hospitals.

Column Explanations (paraphrased from here):

NPC Rating - Nonstructural Performance Category
A small punch (low rating) means that safe and orderly evacuation following a strong earthquake cannot be assumed. A big punch (high rating) means that the facility can continue to operate for 72 hours without any power, water, or sewer after a strong ground motion.

SPC Rating - Structural Performance Category
A small punch (low rating) means that the hospital poses a significant risk of collapse following a strong earthquake. A big punch (high rating) means that the hospital will be reasonably capable of providing services to the public following a strong earthquake. Ratings not verified by the Office of Statewide Health, Planning, and Development (OSHPD) are included.

Multi-Hazard Loss Estimation Technology
-2007 Hazus Score (%): A small punch (low percentage) means the hospital has a low probability of collapsing when ground motions of a given design acceleration occur at the building site. A big punch (high percentage) means that the probability is high.

-2010 Hazus Score (%): Additional building parameters are used to determine the collapse probability. A small punch is a low probability and a big punch is a high probability. Buildings located directly on faults are assigned probability of -50%. (I did not include these buildings in my calculations).

Data for each building in each Hospital were included in the csv. Hospital building averages are used in this table.

Punch Card table design inspired by Syntagmatic

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