Attenuation relation (Ground-motion prediction equation) The term “attenuation relation” is a former short-hand notation in earthquake engineering for “empirical ground-motion attenuation relationship”, now referred to as “ground-motion prediction equation” (GMPE). Attenuation relations represent empirical scaling equations that relate observed ground-motion intensity measures to parameters of ...

The 2014 Ms 6.5 (Mw6.1) Ludian earthquake occurred in the eastern Sichuan-Yunnan border region of western China. This earthquake caused much more severe engineering damage than the usual earthquakes with the same magnitude in China. The National Strong Motion Network obtained large set of ground motion recordings during the earthquake. To investigate the engineering interested characteristics o...

Ground motion prediction equations (GMPE) relate the strong ground shaking parameters to variables describing earthquake source, path, and on-site impact. From many available GMPEs, we select those models that are suitable for use in seismic hazard assessment take into account regional tectonic conditions. We present a GMPE selection procedure evaluates multidimensional trends (e.g., magnitude,...

CyberShake, as part of the Southern California Earthquake Center’s (SCEC) Community Modeling Environment, is developing a methodology that explicitly incorporates deterministic source and wave propagation effects within seismic hazard calculations through the use of physics-based 3D ground motion simulations. To calculate a waveform-based seismic hazard estimate for a site of interest, we begin...

growing environmental and social concerns, both on the part of decision makers and public opinion, have brought a new perspective to the perception of hazard assessments a valid alternative in the long-term, and an effective complement in short and medium terms, to traditional design procedure for a resistant and safe environment. results of the gradual development of research on the probabilis...

Understanding strong ground motions in the near-fault areas is important for seismic risk assessment in densely populated areas. In the past, lack of information on strong ground motion for large and moderate earthquakes led to the use of mainly far field large and moderate earthquake records in equations for calculation of the strong ground motion parameters. In this article, we collected and ...

One of the ground motion prediction equations (GMPEs), which have recently been developed in the Next Generation Attenuation (NGA) project, is employed in this article to estimate site response in terms of amplification factor of the seismic waves in soft superficial sedimentary layer. This study also presents briefly the existing information dealing with the methods for estimating subsurface s...

Abstract A key task when developing a ground-motion model (GMM) is to demonstrate that it captures an appropriate level of epistemic uncertainty. This true whether multiple ground motion prediction equations (GMPEs) are used or backbone approach followed. The GMM developed for seismic hazard assessment the site UK new-build nuclear power plant as example discuss complementary approaches assess ...