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Deterministic simulation of ground motion from induced seismicity at the FORGE site

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ground motions generated by induced seismicity is an important consideration and design factor for the development of enhanced geothermal systems (EGS) and operations. Typically, ground motions are estimated from empirically based ground motion prediction equations using a moment magnitude and a distance with factors to account for local site conditions and in some cases faulting style. Ground motions specific to a site, recorded or modelled, for the specific site conditions and fault geometries may better inform hazard and risk calculations. Here we demonstrate a deterministic calculation of ground motions from postulated moment magnitudes at the Utah FORGE site using source-to-site earthquake simulations using the finite-element method in the codes, FALCON and MASTODON, developed and maintained at the Idaho National Laboratory. Sample results are presented from these simulations and a plan for future work is discussed.

Original languageEnglish
Title of host publicationUsing the Earth to Save the Earth - 2021 Geothermal Rising Conference, GRC 2021
PublisherGeothermal Resources Council
Pages749-756
Number of pages8
ISBN (Electronic)0934412278
StatePublished - 2021
Event2021 Geothermal Rising Conference: Using the Earth to Save the Earth, GRC 2021 - San Diego, United States
Duration: Oct 3 2021Oct 6 2021

Publication series

NameTransactions - Geothermal Resources Council
Volume45
ISSN (Print)0193-5933

Conference

Conference2021 Geothermal Rising Conference: Using the Earth to Save the Earth, GRC 2021
Country/TerritoryUnited States
CitySan Diego
Period10/3/2110/6/21

Keywords

  • FORGE program
  • Finite-element analysis
  • Induced seismicity
  • Seismic hazard analysis
  • Source-to-site ground motion modeling

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