A review of inverse methods in seismic site characterization

Gosselin, Jeremy M.
Dosso, Stan E.
Askan Gündoğan, Ayşegül
Wathelet, Marc
Savvaidis, Alexandros
Cassidy, John F.
Seismic site characterization attempts to quantify seismic wave behavior at a specific location based on near-surface geophysical properties, for the purpose of mitigating damage caused by earthquakes. In recent years, techniques for estimating near-surface properties for site characterization using geophysical observations recorded at the surface have become an increasingly popular alternative to invasive methods. These observations include surface-wave phenomenology such as dispersion (velocity-frequency relationship) as well as, more recently, full seismic waveforms. Models of near-surface geophysical properties are estimated from these data via inversion, such that they reproduce the observed seismic observations. A wide range of inverse problems have been considered in site characterization, applying a variety of mathematical techniques for estimating the inverse solution. These problems vary with respect to seismic data type, algorithmic complexity, computational expense, physical dimension, and the ability to quantitatively estimate the uncertainty in the inverse solution. This paper presents a review of the common inversion strategies applied in seismic site characterization studies, with a focus on associated advantages/disadvantages as well as recent advancements.


An Interdisciplinary Approach for Regional Seismic Damage Estimation
Askan Gündoğan, Ayşegül; Erberik, Murat Altuğ; Karim Zadeh Naghshineh, Shaghayegh; Yakut, Ahmet (2017-01-09)
In order to mitigate seismic risk in urban regions, the first task is to identify potential seismic losses in future earthquakes. Seismic loss estimation is an interdisciplinary framework including a wide range of contributions from geophysical and earthquake engineers, physical and economic planners to insurance companies. In this study, a moderate size city in Turkey, namely Erzincan, is modeled completely from geophysical attributes to the built environment. Erzincan city is on the eastern part of the No...
Evaluation of the site effects of the Ankara basin, Turkey
Kockar, M. K.; Akgün, Haluk (2012-08-01)
Recent major earthquakes have explicitly demonstrated that near-surface local site conditions that can generate significant amplifications and spatial variations of earthquake ground motion play a major role in the level of ground shaking and in gathering information on soft soil response. It is therefore highly desirable to develop methods to identify and characterize regions that are prone to this type of site amplification. To determine the subsurface sediment characteristics over a wide area, measuremen...
An evaluation of the 2019 seismic hazard map of Turkey on the basis of spectrum intensity
Akansel, Vesile Hatun; Soysal, Berat Feyza; Kadaş, Koray; Gülkan, Hakkı Polat (null; 2019-10-11)
Seismic hazard maps show the distribution of expected earthquake shaking levels that have a specific probability of occurrence for a region, and provide input for engineers to design structures that will withstand earthquake ground shaking. The 2019 Turkish Building Earthquake Regulation relies on an updated seismic hazard map that considers new source models and more recent ground motion prediction equations. The effect of the change in seismic hazard map that will directly affect the code-based seismic de...
A Comparative assessment of seismic soil liquefaction triggering relationships
Ilgaç, Makbule; Çetin, Kemal Önder; Department of Civil Engineering (2015)
Starting with 1964 Niigata and Alaska Earthquakes, seismic soil liquefaction behavior has become a major research stream in geotechnical earthquake engineering. Since then, a number of investigators (e.g.: Seed et. al. (1984), Liao et. al. (1988, 1998), Toprak et. al. (1999), Cetin et. al. (2004) and Idriss and Boulanger (2004, 2008, 2012)) introduced deterministic and probabilistic liquefaction triggering assessment methodologies. The scope of this study is to develop an SPT-based seismic soil liquefaction...
An efficient seismic intensity measure for seismic risk analysis of structures
Çelik, Ozan Cem (null; 2010-12-01)
In a seismic fragility or seismic margins assessment, the estimated structural system response is conditioned on a measure of seismic intensity. The U.S. Geological Survey currently stipulates the site-dependent seismic hazard by mapping the spectral acceleration at a frequency of 2% probability of being exceeded in 50 years. The scatter in structural responses at a given intensity measure (IM) due to record-to-record variability in ground motion ensembles used in nonlinear time history analysis of structur...
Citation Formats
J. M. Gosselin, S. E. Dosso, A. Askan Gündoğan, M. Wathelet, A. Savvaidis, and J. F. Cassidy, “A review of inverse methods in seismic site characterization,” JOURNAL OF SEISMOLOGY, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/97265.