Amplification; Attenuation; Rock motion; GMPE adjustments; Host to target

Laurendeau, A., Cotton, F., Ktenidou, O.-J., Bonilla, L.-F. and Hollender, F. (2013) Rock and stiff-Soil site amplification: Dependency on VS30 and Kappa (κ0). Bulletin of the Seismological Society of America, 103 (6). pp. 3131-3148. ISSN 0037-1106 (Print), 1943-3573 (Online) (doi:10.1785/0120130020)

Body waves, Earthquake ground motions, Earthquake hazards, Seismic attenuation, Site effects

Van Houtte, Chris, Ktenidou, Olga-Joan, Larkin, Tam and Holden, Caroline (2017) A continuous map of near-surface S-wave attenuation in New Zealand. Geophysical Journal International, 213 (1). pp. 408-425. ISSN 0956-540X (Print), 1365-246X (Online) (doi:10.1093/gji/ggx559)

Earthquake ground motions; Seismic attenuation; Site effects; Wave scattering and diffraction; Wave propagation

Ktenidou, Olga-Joan, Abrahamson, Norman A., Drouet, Stéphane and Cotton, Fabrice (2015) Understanding the physics of kappa (κ): Insights from a downhole array. Geophysical Journal International, 203 (1). pp. 678-691. ISSN 0956-540X (Print), 1365-246X (Online) (doi:10.1093/gji/ggv315)

GMPE, ASA40, ground motion prediction equation,

Koufoudi, E., Ktenidou, O.-J., Cotton, F., Dufour, F. and Grange, S. (2015) Empirical ground-motion models adapted to the intensity measure ASA 40. Bulletin of Earthquake Engineering, 13 (12). pp. 3625-3643. ISSN 1570-761X (Print), 1573-1456 (Online) (doi:10.1007/s10518-015-9797-z)

Ground motion; Variability; Uncertainty; Single station sigma; Site response

Ktenidou, Olga-Tzoan, Roumelioti, Zafeiria, Abrahamson, Norman, Cotton, Fabrice, Pitilakis, Kyriazis and Hollender, Fabrice (2017) Understanding single-station ground motion variability and uncertainty (sigma) – Lessons learnt from EUROSEISTEST. Bulletin of Earthquake Engineering. ISSN 1570-761X (doi:10.1007/s10518-017-0098-6)

HVSR, empirical spectral ratios, rock sites, amplification

Van Houtte, C., Ktenidou, O.-J., Larkin, T. and Kaiser, A. (2012) Reference stations for Christchurch. Bulletin of the New Zealand Society for Earthquake Engineering, 45 (4). pp. 184-195. ISSN 1174-9857 (Online)

Hard Rock reference motion; Site effects; KiK-net; GMPEs; "Host-to-target" adjustments

Laurendeau, A., Bard, P.-Y., Hollender, F., Perron, V., Foundotos, L., Ktenidou, O.-J. and Hernandez, B. (2017) Derivation of consistent hard rock (1000<Vs<3000 m/s) GMPEs from surface and down-hole recordings: Analysis of KiK-net data. Bulletin of Earthquake Engineering. pp. 1-32. ISSN 1570-761X (Print), 1573-1456 (Online) (doi:10.1007/s10518-017-0142-6)

High frequency attenuation; kappa; uncertainty

Ktenidou, Olga‐Joan, Cotton, Fabrice, Abrahamson, Norman A. and Anderson, John G. (2014) Taxonomy of κ: A review of definitions and estimation approaches targeted to applications. Seismological Research Letters, 85 (1). pp. 135-146. ISSN 0895-0695 (Print), 1938-2057 (Online) (doi:10.1785/0220130027)

High frequency attenuation; stable continental regions; hard sites; amplification; GMPE; ground motion adjustment

Ktenidou, Olga-Joan, Abrahamson, Norman A., Darragh, Robert B. and Silva, Walter J. (2016) A methodology for the estimation of kappa (κ) for large datasets. Example application to rock sites in the NGA-East database. [Working Paper]

High frequency attenuation; uncertainty; kappa estimation methodology

Ktenidou, O.-J., Gélis, C. and Bonilla, L.‐F. (2013) A study on the variability of Kappa (κ) in a borehole: Implications of the computation process. Bulletin of the Seismological Society of America, 103 (2A). pp. 1048-1068. ISSN 0037-1106 (Print), 1938-2057 (Online) (doi:10.1785/0120120093)

Kappa; High-frequency attenuation; Transportable Array; Stress drop/parameter; Band-limited data

Ktenidou, Olga-Joan, Silva, Walter J., Darragh, Robert B., Abrahamson, Norman A. and Kishida, Tadahiro (2017) Squeezing Kappa (κ) out of the transportable array: A strategy for using bandlimited data in regions of sparse seismicity. Bulletin of the Seismological Society of America, 107 (1). pp. 256-275. ISSN 0037-1106 (Print), 1943-3573 (Online) (doi:10.1785/0120150301)

Seismic amplification; ground motion; site effects

Ktenidou, Olga-Joan, Chávez-García, Francisco J. and Pitilakis, Kyriazis D. (2011) Variance reduction and signal-to-noise ratio: Reducing uncertainty in spectral ratios. Bulletin of the Seismological Society of America, 101 (2). pp. 619-634. ISSN 0037-1106 (doi:10.1785/0120100036)

Seismic data processing, Fourier spectra; time series analysis; wave arrival picking

Kishida, Tadahiro, Ktenidou, Olga-Joan, Darragh, Robert B. and Walter, Silva (2016) Semi-automated procedure for windowing time series and computing Fourier amplitude spectra (FAS) for the NGA-West2 database. [Working Paper]

Site effects; Basin edge; Amplification; Directionality; CORSSA; Downhole array

Ktenidou, Olga-Joan, Chávez-García, Francisco-J., Raptakis, Dimitrios and Pitilakis, Kyriazis D. (2016) Directional dependence of site effects observed near a basin edge at Aegion, Greece. Bulletin of Earthquake Engineering, 14 (3). pp. 623-645. ISSN 1570-761X (Print), 1573-1456 (Online) (doi:10.1007/s10518-015-9843-x)

Weak motion dataset; critical facility; kappa; Vs profile

Kishida, Tadahiro, Kayen, Robert E., Ktenidou, Olga-Joan, Silva, Walter J., Darragh, Robert B. and Watson-Lamprey, Jennie (2014) PEER Arizona strong-motion database and GMPEs evaluation. [Working Paper]

kappa, Site specific, Low-to-moderate seismicity, Reliability

Hollender, Fabrice, Perron, Vincent, Bard, Pierre-Yves, Gélis, Céline, Guyonnet- Benaize, Cédric, Hernandez, Bruno and Ktenidou, Olga-Joan (2017) Robustness of kappa (κ) measurement in low-to-moderate seismicity 1 areas: insight from a site-specific study in Provence, France. Bulletin of the Seismological Society of America, 107 (5). pp. 2272-2292. ISSN 0037-1106 (doi:10.1785/0120160374)

kappa, high frequency attenuation, rock, estimation method, scatter

Edwards, Benjamin, Ktenidou, Olga-Joan, Cotton, Fabrice, Abrahamson, Norman, Van Houtte, Chris and Fäh, Donat (2015) Epistemic uncertainty and limitations of the κ0 model for near-surface attenuation at hard rock sites. Geophysical Journal International, 202 (3). pp. 1627-1645. ISSN 0956-540X (Print), 1365-246X (Online) (doi:10.1093/gji/ggv222)

kappa; amplification; attenuation

Ktenidou, Olga-Joan and Abrahamson, Norman A. (2016) Empirical estimation of high-frequency ground motion on hard rock. Seismological Research Letters, 87 (6). ISSN 0895-0695 (Print), 1938-2057 (Online) (doi:10.1785/0220160075)

rock, high-frequency attenuation, site effects, amplification

Houtte, Chris Van, Ktenidou, Olga-Joan, Larkin, Tam and Holden, Caroline (2014) Hard-Site κ0 (Kappa) calculations for Christchurch, New Zealand, and comparison with local ground-motion prediction, models. Bulletin of the Seismological Society of America, 104 (4). pp. 1899-1913. ISSN 0037-1106 (Print), 1943-3573 (Online) (doi:10.1785/0120130271)