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A global database of strong-motion displacement GNSS recordings and an example application to PGD scaling

Christine J. Ruhl, Diego Melgar, Geng Jianghui, Dara E. Goldberg, Brendan W. Crowell, Richard M. Allen, Yehuda Bock, Sergio Barrientos, Sebastian Riquelme, Juan Carlos Baez, Enrique Cabral-Cano, Xyoli Perez-Campos, Emma M. Hill, Marino Protti, Athanassios Ganas, Mario Ruiz, Patricia Mothes, Paul Jarrin, Jean-Mathieu Nocquet, Jean-Phillippe Avouac and Elisabetta D'Anastasio
A global database of strong-motion displacement GNSS recordings and an example application to PGD scaling
Seismological Research Letters (October 2018) 90 (1): 271-279


Displacement waveforms derived from Global Navigation Satellite System (GNSS) data have become more commonly used by seismologists in the past 15 yrs. Unlike strong-motion accelerometer recordings that are affected by baseline offsets during very strong shaking, GNSS data record displacement with fidelity down to 0 Hz. Unfortunately, fully processed GNSS waveform data are still scarce because of limited public availability and the highly technical nature of GNSS processing. In an effort to further the use and adoption of high-rate (HR) GNSS for earthquake seismology, ground-motion studies, and structural monitoring applications, we describe and make available a database of fully curated HR-GNSS displacement waveforms for significant earthquakes. We include data from HR-GNSS networks at near-source to regional distances (1-1000 km) for 29 earthquakes between M (sub w) 6.0 and 9.0 worldwide. As a demonstration of the utility of this dataset, we model the magnitude scaling properties of peak ground displacements (PGDs) for these events. In addition to tripling the number of earthquakes used in previous PGD scaling studies, the number of data points over a range of distances and magnitudes is dramatically increased. The data are made available as a compressed archive with the article.

ISSN: 0895-0695
EISSN: 1938-2057
Serial Title: Seismological Research Letters
Serial Volume: 90
Serial Issue: 1
Title: A global database of strong-motion displacement GNSS recordings and an example application to PGD scaling
Affiliation: University of California at Berkeley, Berkeley Seismological Laboratory, Berkeley, CA, United States
Pages: 271-279
Published: 20181031
Text Language: English
Publisher: Seismological Society of America, El Cerrito, CA, United States
References: 20
Accession Number: 2019-003639
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, sketch maps
Secondary Affiliation: Wuhan University, CHN, ChinaUniversity of California at San Diego, USA, United StatesUniversity of Washington, USA, United StatesUniversidad de Chile, CHL, ChileUniversidad Nacional Autonoma de Mexico, MEX, MexicoNanyang Technological University, SGP, SingaporeNational Observatory of Athens, GRC, GreeceInstituto Geofisico, ECU, EcuadorUniversite de Nice Sophia-Antipolis, FRA, FranceCalifornia Institute of Technology, USA, United StatesGNS Science, NZL, New Zealand
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201904
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