Overview of

Non-ergodic Ground-Motion Methodologies and Models

On-Line Workshop

Monday April 4, 2022

9:00-12:00 Pacific Time

The first short workshop on the development and applications of Non-ergodic Ground-Motion Models (NGMMS) was held online on Monday, April 4 from 9:00 am – 12:00 pm (PST). NGMMs have the prospect of reducing the aleatory ground-motion variability which has a large impact on the seismic hazard. The objective of the workshop is to review methodologies for developing spatially varying NGMMs, share and present the developed software for the regression and application of NGMMs, and discuss the role of numerical simulations in NGMMS development and verification.

The workshop is organized by the UCLA Natural Hazards Risk and Resiliency Research Center (NHR3). Financial support by the California Department of Transportation and Pacific Gas & Electric Company is greatly appreciated.

AGENDA:

  • [09:00 – 09:10] Workshop overview (Yousef Bozorgnia)
  • [09:10 – 09:30] Overview and applications of non-ergodic ground motion models (Norman Abrahamson)
  • [09:30 – 10:10] Review of various NGMMs and methodologies (Greg Lavrentiadis and Nicolas Kuehn)
  • [10:10 – 10:30] Role of 3D earthquake simulations in informing NGMM development (Xiaofeng Meng and Christine Goulet)

(10’ Break)

  • [10:40 – 11:10] Review of various implementations and computer codes (Greg Lavrentiadis, Elnaz Seylabi, and Nicolas Kuehn)
  • [11:10 – 11:20] Overview of a report documenting methods and computer codes (Elnaz Seylabi and Greg Lavrentiadis)
  • [11:20 – 11:30] Examples of hazard results (Nicolas Kuehn, Greg Lavrentiadis, and Albert Kottke)
  • [11:30 – 12:00] Q/A and next steps (Yousef Bozorgnia)

REGISTION CLOSED