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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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) |
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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 |
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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 |
work_keys_str_mv |
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