Seismic Hazard Assessment at the Fallon, Nevada, Frontier Observatory for Research in Geothermal Energy Site
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Abstract
Enhanced geothermal systems (EGS) technology aims to engineer a productive geothermal reservoir in regions of hot, but low permeability, rocks. In any EGS operation, the rock mass requires stimulation by high pressure injection of fluids, which has the potential to induce seismicity. To address the seismic hazard specifically, a probabilistic seismic hazard assessment (PSHA) is often required and is generally part of an induced seismicity mitigation plan (ISMP). A specific PSHA for the proposed Fallon, Nev., FORGE site is outlined below that relies solely on hypothetical stimulation scenarios and analog sites to assess the hazard of induced seismicity in the absence of local microseismicity. Partially due to the lack of existing seismicity at the site and partially to arrive at conservative estimates of the hazard, the PSHA is calculated for a range of b-values. Results indicate that the conservative estimates of seismic hazard at locations having significant, sensitive infrastructure near the proposed site are very low.
Suggested Citation
Kaven, J.O., Majer, E.L., Foxall, W., Sonnenthal, E.L., Pettitt, W., 2019, Seismic hazard assessment at the Fallon, Nevada, Frontier Observatory for Research in Geothermal Energy site: U.S. Geological Survey Open-File Report 2019–1020, 16 p., https://doi.org/10.3133/ofr20191020.
ISSN: 2331-1258 (online)
Study Area
Table of Contents
- Introduction
- Seismotectonic Setting
- Seismic Hazard Analysis Methodology
- Ground Motion Prediction Equations (GMPE)
- Seismic Hazard Results
- Summary
- Acknowledgments
- References Cited
Publication type | Report |
---|---|
Publication Subtype | USGS Numbered Series |
Title | Seismic hazard assessment at the Fallon, Nevada, Frontier Observatory for Research in Geothermal Energy site |
Series title | Open-File Report |
Series number | 2019-1020 |
DOI | 10.3133/ofr20191020 |
Year Published | 2019 |
Language | English |
Publisher | U.S. Geological Survey |
Publisher location | Reston, VA |
Contributing office(s) | Earthquake Science Center |
Description | iv, 16 p. |
Country | United States |
State | Nevada |
City | Fallon |
Online Only (Y/N) | Y |
Google Analytic Metrics | Metrics page |