From source to building fragility: Post-event assessment of the 2013 M7.1 Bohol, Philippines, Earthquake

Muriel Naguit, Phil Cummins, Mark Edwards, Hadi Ghasemi, Bartolome Bautista, Hyeuk Ryu, Marcus Haynes

    Research output: Contribution to journalArticlepeer-review

    13 Citations (Scopus)

    Abstract

    We use ground-motion simulations of the 2013 Bohol, Philippines, earthquake along with a new post-disaster exposure/damage database to constrain building fragility and vulnerability. The large number of damaged buildings (>70,000) and the wide spread of seismic intensities caused by this earthquake make it an ideal candidate for such a study. An extensive survey was conducted leading to a robust description of over 25,000 damaged and undamaged structures. Ground-motion fields were simulated using ground-motion prediction equations and stochastic modeling, and the estimated and observed values were compared. The finite source model used in the simulation was based on the analysis of aftershocks and SAR data. The ground motions were associated with the empirical database to derive fragility and vulnerability models. Results indicate that the pattern of damage is best captured in the stochastic simulation. Constraints were placed on seismic building fragility and vulnerability models, which can promote more effective implementation of construction regulations and practices.

    Original languageEnglish
    Pages (from-to)999-1027
    Number of pages29
    JournalEarthquake Spectra
    Volume33
    Issue number3
    DOIs
    Publication statusPublished - Aug 2017

    Fingerprint

    Dive into the research topics of 'From source to building fragility: Post-event assessment of the 2013 M7.1 Bohol, Philippines, Earthquake'. Together they form a unique fingerprint.

    Cite this