A Near Real-Time Seismic Consequence Assessment Method Based on Real-Time Seismology

Abstract eng:
A near real-time seismic consequence assessment method as emergency response decision support system is presented. It can be used immediately after an earthquake to assess the probability of various damage states of buildings, economic losses and casualty. As the technology of seismic instrumentation, telemetry, communication, computers, and data storage facility has advanced, the real-time seismology for rapid post-earthquake notification is essentially established. The magnitude of earthquakes and location of epicenters have come to be estimated urgently in a few seconds based on observed data of P wave. Research for real-time earthquake engineering is still underway. In this paper, we have developed an immediate evaluation method for earthquake damage of buildings by combining the early earthquake warning and seismic consequence estimation. The seismic consequences are represented by a function of earthquake magnitude, epicenter distance and site condition. These seismic consequence surfaces can be constructed by dynamic analysis of buildings under various conditions at ordinary time. As a result, the various damage states of RC buildings and economic losses can be evaluated very quickly for seismic rapid reporting system by the method proposed based on real-time seismology. The near real-time seismic consequence assessment can be issued, in addition to the epicenter and magnitude. It would benefit earthquake emergency response operations greatly and help to establish real-time earthquake engineering as future means of reducing disaster damage.

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