Acta Geodaetica et Geophysica

, Volume 50, Issue 1, pp 21–37

Seismic hazard and risk assessment based on the unified scaling law for earthquakes

  • A. Nekrasova
  • V. G. Kossobokov
  • I. A. Parvez
  • X. Tao
Article

Abstract

The Unified Scaling Law for Earthquakes (USLE), that generalizes the Gutenberg–Richter recurrence relation, has evident implications since any estimate of seismic hazard depends on the size of territory that is used for investigation, averaging, and extrapolation into the future. Therefore, the hazard may differ dramatically when scaled down to the proportion of the area of interest (e.g. a city) from the enveloping area of investigation. In fact, given the observed patterns of distributed seismic activity the results of multi-scale analysis embedded in USLE approach demonstrate that traditional estimations of seismic hazard and risks for cities and urban agglomerations are usually underestimated. Moreover, the USLE approach provides a significant improvement when compared to the results of probabilistic seismic hazard analysis, e.g. the maps resulted from the Global Seismic Hazard Assessment Project (GSHAP). In this paper, we apply the USLE approach to evaluating seismic hazard and risks to population of the three territories of different size representing a sub-continental and two different regional scales of analysis, i.e. the Himalayas and surroundings, Lake Baikal, and Central China regions.

Keywords

Seismic hazard Unified scaling law Seismic risk  Peak ground acceleration 

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Copyright information

© Akadémiai Kiadó 2014

Authors and Affiliations

  • A. Nekrasova
    • 1
  • V. G. Kossobokov
    • 1
    • 2
  • I. A. Parvez
    • 3
  • X. Tao
    • 4
  1. 1.Institute of Earthquake Prediction Theory and Mathematical GeophysicsRussian Academy of SciencesMoscowRussian Federation
  2. 2.Institut de Physique du Globe de ParisParisFrance
  3. 3.CSIR Centre for Mathematical Modelling and Computer SimulationBangaloreIndia
  4. 4.Harbin Institute of TechnologyHarbinPeople’s Republic of China

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