A5011116053- Seismic Performance and Analysis
- Seismic Waves and Analysis
- earthquake and tectonic studies
United States Geological Survey
2021-2023
Geologic Hazards Science Center
2021
With the recent successful accounting of basin depth ground-motion adjustments in seismic hazard analyses for select areas western United States, we move toward implementing similar Atlantic and Gulf Coastal Plains by constructing a sediment thickness model evaluating multiple relevant site amplification models central eastern States analyses. We digitize combine existing data sets into composite surface that delineates base Cretaceous sediments under Plain Mesozoic Plain. Amplification...
Abstract Ground-motion analysis of more than 3000 records from 59 earthquakes, including the March 2020 Mw 5.7 Magna earthquake sequence, was carried out to investigate site response and basin amplification in Wasatch Front, Utah. We compare ground motions with Bayless Abrahamson (2019; hereafter, BA18) ground-motion model (GMM) for Fourier amplitude spectra, which developed on crustal California other tectonically active regions. The Front show a significantly different near-source rate...