PEER NGA-East Database

Tadahiro Kishida1, Christine A. Goulet1, Timothy D. Ancheta2, Chris H Cramer3, Robert B. Darragh4, Walter J Silva Jr4, Youssef M. A. Hashash5, Joseph Harmon5, Jonathan P. Stewart6, Katie E. Wooddell1 and Robert R Youngs7, (1)University of California Berkeley, Berkeley, CA, United States, (2)Risk Management Solutions, Newark, CA, United States, (3)University of Memphis, Center for Earthquake Research and Information, Memphis, United States, (4)Pacific Engineering and Analysis, El Cerrito, CA, United States, (5)University of Illinois at Urbana-Champaign, Champaign, IL, United States, (6)University of California Los Angeles, Civil and Environmental Engineering, Los Angeles, United States, (7)AMEC Oakland, Oakland, CA, United States

Contact First Author: Tadahiro Kishida; kishidapple@gmail.com

Previously Published Material: Christine A. Goulet, Tadahiro Kishida, Chris H. Cramer, Robert B. Darragh, Walter J. Silva, Youssef M. A. Hashash, Joseph Harmon, Jonathan P. Stewart, Katie E. Wooddell, Robert R. Youngs (2014), "PEER NGA-East Database", Pacific Earthquake Engineering Research Center, PEER Report 2014/09.

Abstract ID#: 36340

 

English Abstract:
We summarize the attributes of a comprehensive ground motion database developed for the Central and Eastern North America (CENA) region. The database was developed as part of the Next Generation Attenuation Project for CENA (NGA-East), a large multi-disciplinary project coordinated by the Pacific Earthquake Engineering Research center (PEER).The NGA-East database includes the two- and three-component ground-motion recordings from numerous selected events (M ≥ 2.5, distances up to 1500 km) recorded since 1988. The final database contains over 9,600 records from 81 earthquake events and 1379 recording stations. The NGA-East database constitutes the largest database of processed recorded ground motions from Stable Continental Regions (SRCs). The motivation behind the development of the empirical database is the same as for other NGA projects (NGA-West1 and NGA-West2), which is to be used, along with other information and data, for the development of ground motion prediction equations (GMPEs). The NGA-East ground motion database, similar to those from the NGA-West projects, includes pseudo-spectral acceleration (PSA) for the 5%-damped elastic oscillators with periods ranging from 0.007 to 10 sec. Additionally, the NGA-East database includes Fourier amplitude spectra (FAS) of the processed ground motions. The NGA-East database therefore consists of three groups of complementary products: the summary file referred to as the flatfile, which contains metadata, ground motion information and intensity measures on a record-per-record basis, the time series (acceleration, velocity, and displacement), and the corresponding Fourier spectra files. The NGA-East database products will also be made available to the public through the PEER online ground motion tool. An overview of the NGA-East database attributes and development is presented.
Back to: Advances in Ground Motion Modeling in Eastern North America I