Near-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS

Abstract The temporal evolution of slip on surface ruptures during an earthquake is important for assessing fault displacement, defining seismic hazard and for predicting ground motion. However, measurements of near-field surface displacement at high temporal resolution are elusive. We present a nov...

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Autores principales: Maxwell W. Wilkinson, Ken J. W. McCaffrey, Richard R. Jones, Gerald P. Roberts, Robert E. Holdsworth, Laura C. Gregory, Richard J. Walters, Luke Wedmore, Huw Goodall, Francesco Iezzi
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Publicado: Nature Portfolio 2017
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spelling oai:doaj.org-article:d2b6aa159bfe494094907983996ae3ea2021-12-02T11:52:42ZNear-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS10.1038/s41598-017-04917-w2045-2322https://doaj.org/article/d2b6aa159bfe494094907983996ae3ea2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04917-whttps://doaj.org/toc/2045-2322Abstract The temporal evolution of slip on surface ruptures during an earthquake is important for assessing fault displacement, defining seismic hazard and for predicting ground motion. However, measurements of near-field surface displacement at high temporal resolution are elusive. We present a novel record of near-field co-seismic displacement, measured with 1-second temporal resolution during the 30th October 2016 Mw 6.6 Vettore earthquake (Central Italy), using low-cost Global Navigation Satellite System (GNSS) receivers located in the footwall and hangingwall of the Mt. Vettore - Mt. Bove fault system, close to new surface ruptures. We observe a clear temporal and spatial link between our near-field record and InSAR, far-field GPS data, regional measurements from the Italian Strong Motion and National Seismic networks, and field measurements of surface ruptures. Comparison of these datasets illustrates that the observed surface ruptures are the propagation of slip from depth on a surface rupturing (i.e. capable) fault array, as a direct and immediate response to the 30th October earthquake. Large near-field displacement ceased within 6–8 seconds of the origin time, implying that shaking induced gravitational processes were not the primary driving mechanism. We demonstrate that low-cost GNSS is an accurate monitoring tool when installed as custom-made, short-baseline networks.Maxwell W. WilkinsonKen J. W. McCaffreyRichard R. JonesGerald P. RobertsRobert E. HoldsworthLaura C. GregoryRichard J. WaltersLuke WedmoreHuw GoodallFrancesco IezziNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Maxwell W. Wilkinson
Ken J. W. McCaffrey
Richard R. Jones
Gerald P. Roberts
Robert E. Holdsworth
Laura C. Gregory
Richard J. Walters
Luke Wedmore
Huw Goodall
Francesco Iezzi
Near-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS
description Abstract The temporal evolution of slip on surface ruptures during an earthquake is important for assessing fault displacement, defining seismic hazard and for predicting ground motion. However, measurements of near-field surface displacement at high temporal resolution are elusive. We present a novel record of near-field co-seismic displacement, measured with 1-second temporal resolution during the 30th October 2016 Mw 6.6 Vettore earthquake (Central Italy), using low-cost Global Navigation Satellite System (GNSS) receivers located in the footwall and hangingwall of the Mt. Vettore - Mt. Bove fault system, close to new surface ruptures. We observe a clear temporal and spatial link between our near-field record and InSAR, far-field GPS data, regional measurements from the Italian Strong Motion and National Seismic networks, and field measurements of surface ruptures. Comparison of these datasets illustrates that the observed surface ruptures are the propagation of slip from depth on a surface rupturing (i.e. capable) fault array, as a direct and immediate response to the 30th October earthquake. Large near-field displacement ceased within 6–8 seconds of the origin time, implying that shaking induced gravitational processes were not the primary driving mechanism. We demonstrate that low-cost GNSS is an accurate monitoring tool when installed as custom-made, short-baseline networks.
format article
author Maxwell W. Wilkinson
Ken J. W. McCaffrey
Richard R. Jones
Gerald P. Roberts
Robert E. Holdsworth
Laura C. Gregory
Richard J. Walters
Luke Wedmore
Huw Goodall
Francesco Iezzi
author_facet Maxwell W. Wilkinson
Ken J. W. McCaffrey
Richard R. Jones
Gerald P. Roberts
Robert E. Holdsworth
Laura C. Gregory
Richard J. Walters
Luke Wedmore
Huw Goodall
Francesco Iezzi
author_sort Maxwell W. Wilkinson
title Near-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS
title_short Near-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS
title_full Near-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS
title_fullStr Near-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS
title_full_unstemmed Near-field fault slip of the 2016 Vettore Mw 6.6 earthquake (Central Italy) measured using low-cost GNSS
title_sort near-field fault slip of the 2016 vettore mw 6.6 earthquake (central italy) measured using low-cost gnss
publisher Nature Portfolio
publishDate 2017
url https://doaj.org/article/d2b6aa159bfe494094907983996ae3ea
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