Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe
We present a modeling technique for generating synthetic ground motions, aimed at earthquakes of design significance for critical structures and ground motions at distances corresponding to the engineering near field, in which real data are often missing. We use dynamic modeling based on the finite-...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/347608 2023-08-20T04:06:25+02:00 Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe Jussila, Vilho Fälth, Billy Mäntyniemi, Päivi Voss, Peter H. Lund, Björn Fülöp, Ludovic Department of Geosciences and Geography Department of Physics Institute of Seismology 2022-08-30T22:18:31Z 20 http://hdl.handle.net/10138/347608 eng eng https://doi.org/10.1785/0120210081 Bulletin of the Seismological Society of America 0037-1106 Jussila , V , Fälth , B , Mäntyniemi , P , Voss , P H , Lund , B & Fülöp , L 2021 , ' Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe ' , Bulletin of the Seismological Society of America , vol. 111 , no. 5 , pp. 2507-2526 . https://doi.org/10.1785/0120210081 PURE: 167123213 PURE UUID: e1493fd3-0398-4991-8b41-1758fa247ec0 WOS: 000704250000001 http://hdl.handle.net/10138/347608 unspecified openAccess info:eu-repo/semantics/openAccess 114 Physical sciences 1171 Geosciences ground-motion prediction equation synthetic ground motion generation seismic hazard analysis EARTHQUAKE RUPTURE SIMULATION VELOCITY ATTENUATION VALIDATION SCATTERING SCENARIOS BENEATH SITE 3DEC Article acceptedVersion 2022 ftunivhelsihelda https://doi.org/10.1785/0120210081 2023-07-28T06:06:21Z We present a modeling technique for generating synthetic ground motions, aimed at earthquakes of design significance for critical structures and ground motions at distances corresponding to the engineering near field, in which real data are often missing. We use dynamic modeling based on the finite-difference approach to simulate the rupture process within a fault, followed by kinematic modeling to generate the ground motions. The earthquake source ruptures were modeled using the 3D distinct element code (Itasca, 2013). We then used the complete synthetic program by Spudich and Xu (2002) to simulate the propagation of seismic waves and to obtain synthetic ground motions. In this work, we demonstrate the method covering the frequency ranges of engineering interests up to 25 Hz and quantify the differences in ground motion generated. We compare the synthetic ground motions for distances up to 30 km with a ground-motion prediction equation, which synthesizes the expected ground motion and its randomness based on observations. The synthetic ground motions can be used to supplement observations in the near field for seismic hazard analysis. We demonstrate the hybrid approach to one critical site in the Fennoscandian Shield, northern Europe. Peer reviewed Article in Journal/Newspaper Fennoscandia Fennoscandian Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto Bulletin of the Seismological Society of America 111 5 2507 2526 |
institution |
Open Polar |
collection |
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
114 Physical sciences 1171 Geosciences ground-motion prediction equation synthetic ground motion generation seismic hazard analysis EARTHQUAKE RUPTURE SIMULATION VELOCITY ATTENUATION VALIDATION SCATTERING SCENARIOS BENEATH SITE 3DEC |
spellingShingle |
114 Physical sciences 1171 Geosciences ground-motion prediction equation synthetic ground motion generation seismic hazard analysis EARTHQUAKE RUPTURE SIMULATION VELOCITY ATTENUATION VALIDATION SCATTERING SCENARIOS BENEATH SITE 3DEC Jussila, Vilho Fälth, Billy Mäntyniemi, Päivi Voss, Peter H. Lund, Björn Fülöp, Ludovic Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe |
topic_facet |
114 Physical sciences 1171 Geosciences ground-motion prediction equation synthetic ground motion generation seismic hazard analysis EARTHQUAKE RUPTURE SIMULATION VELOCITY ATTENUATION VALIDATION SCATTERING SCENARIOS BENEATH SITE 3DEC |
description |
We present a modeling technique for generating synthetic ground motions, aimed at earthquakes of design significance for critical structures and ground motions at distances corresponding to the engineering near field, in which real data are often missing. We use dynamic modeling based on the finite-difference approach to simulate the rupture process within a fault, followed by kinematic modeling to generate the ground motions. The earthquake source ruptures were modeled using the 3D distinct element code (Itasca, 2013). We then used the complete synthetic program by Spudich and Xu (2002) to simulate the propagation of seismic waves and to obtain synthetic ground motions. In this work, we demonstrate the method covering the frequency ranges of engineering interests up to 25 Hz and quantify the differences in ground motion generated. We compare the synthetic ground motions for distances up to 30 km with a ground-motion prediction equation, which synthesizes the expected ground motion and its randomness based on observations. The synthetic ground motions can be used to supplement observations in the near field for seismic hazard analysis. We demonstrate the hybrid approach to one critical site in the Fennoscandian Shield, northern Europe. Peer reviewed |
author2 |
Department of Geosciences and Geography Department of Physics Institute of Seismology |
format |
Article in Journal/Newspaper |
author |
Jussila, Vilho Fälth, Billy Mäntyniemi, Päivi Voss, Peter H. Lund, Björn Fülöp, Ludovic |
author_facet |
Jussila, Vilho Fälth, Billy Mäntyniemi, Päivi Voss, Peter H. Lund, Björn Fülöp, Ludovic |
author_sort |
Jussila, Vilho |
title |
Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe |
title_short |
Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe |
title_full |
Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe |
title_fullStr |
Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe |
title_full_unstemmed |
Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe |
title_sort |
application of a hybrid modeling method for generating synthetic ground motions in fennoscandia, northern europe |
publishDate |
2022 |
url |
http://hdl.handle.net/10138/347608 |
genre |
Fennoscandia Fennoscandian |
genre_facet |
Fennoscandia Fennoscandian |
op_relation |
https://doi.org/10.1785/0120210081 Bulletin of the Seismological Society of America 0037-1106 Jussila , V , Fälth , B , Mäntyniemi , P , Voss , P H , Lund , B & Fülöp , L 2021 , ' Application of a hybrid modeling method for generating synthetic ground motions in Fennoscandia, northern Europe ' , Bulletin of the Seismological Society of America , vol. 111 , no. 5 , pp. 2507-2526 . https://doi.org/10.1785/0120210081 PURE: 167123213 PURE UUID: e1493fd3-0398-4991-8b41-1758fa247ec0 WOS: 000704250000001 http://hdl.handle.net/10138/347608 |
op_rights |
unspecified openAccess info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1785/0120210081 |
container_title |
Bulletin of the Seismological Society of America |
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111 |
container_issue |
5 |
container_start_page |
2507 |
op_container_end_page |
2526 |
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1774717463709089792 |