Skip to Main Content
Skip Nav Destination

California ground motion vertical array database

Kioumars Afshari, Jonathan P. Stewart and Jamison H. Steidl
California ground motion vertical array database
Earthquake Spectra (November 2019) 35 (4): 2003-2015


We present a data set of ground motion recordings and site information from vertical array sites in California. The recordings include two horizontal components of ground shaking at the ground surface level and from downhole sensors. The availability of both surface and downhole recordings at the same site facilitates direct observations of site response. The site data include measured shear-and compression-wave velocities, and, where available, geotechnical boring logs. We considered 39 vertical array sites in California and chose 21 for inclusion in the database on the basis of having at least four pairs of surface/downhole recordings. The recordings and site data are presented in a data repository, which is accessible at the DesignSafe platform (DOI: 10.17603/146DS2N680). The original digital accelerograms are processed in a manner consistent with NGA-West2 protocols. In this paper, this data set is compared to a similar but larger data set from Japanese vertical arrays compiled by others.

ISSN: 8755-2930
EISSN: 1944-8201
Serial Title: Earthquake Spectra
Serial Volume: 35
Serial Issue: 4
Title: California ground motion vertical array database
Affiliation: Karen Clark & Company, Boston, MA, United States
Pages: 2003-2015
Published: 201911
Text Language: English
Publisher: Earthquake Engineering Research Institute, Berkeley, CA, United States
References: 17
Accession Number: 2021-006725
Categories: Seismology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, geol. sketch maps
N32°30'00" - N42°00'00", W124°30'00" - W114°15'00"
Secondary Affiliation: University of California at Los Angeles, Civil & Environmental Engineering Department, USA, United StatesUniversity of California at Santa Barbara, Earth Science Department, USA, United States
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2021, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 202105
Close Modal

or Create an Account

Close Modal
Close Modal