Related references
Note: Only part of the references are listed.
Article
Engineering, Geological
S. Mavroulis et al.
Summary: On October 30, 2020, a 7.0 magnitude earthquake hit the Eastern Aegean Sea, causing significant impact on Samos Island in Greece and the area of Izmir in Turkey. The response actions taken by the Civil Protection authorities in both countries included initial announcements, search and rescue operations, medical care and provision of essential supplies. These actions were coordinated by a main Civil Protection agency, in close cooperation with national, regional and local authorities.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Geological
Baris Binici et al.
Summary: The Samos Earthquake caused the collapse of around fifty buildings in Izmir city center, resulting in over 120 fatalities. Despite experiencing accelerations lower than those defined by the Turkish Code design spectrum, significant damage was observed due to deficiencies in the building stock. Studies on deformation capacity estimation of RC columns in Turkish earthquakes showed that buildings with low concrete strength had high column axial load ratios with limited drift capacity, contributing to collapse.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Geological
Aysegul Askan et al.
Summary: The study presents a dataset of 77 strong ground motion records from the M7.0 Samos Island earthquake, discussing acceleration time histories, Fourier amplitude spectra, and response spectra along with source, propagation path, and site effects. Findings show long-period amplifications causing damages in Izmir bay, with spectral accelerations below design spectra in damaged regions. Peak ground motions are used to create a macroseismic intensity map reflecting actual earthquake damage. Records indicate strong energy signature of the Samos earthquake in the 0.5-1.5 s period range, with additional amplifications observed in heavily hit Izmir city due to basin effects. Records at larger distances show lower amplitudes than predicted by ground motion models, suggesting further studies for regional attenuation models.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Geological
Anastasia Kiratzi et al.
Summary: The 30 October 2020 Samos earthquake ruptured an east-west striking, north dipping normal fault located offshore the northern coast of Samos Island. The earthquake triggered nearby strike-slip and normal fault segments. The study shows that the seismic sequence primarily ruptured the upper crust and slip was mainly concentrated in two asperities located up-dip from the hypocenter and at shallow depths.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Geological
Kemal Onder Cetin et al.
Summary: The study shows that site effects and soil-structure resonance induced by the earthquake led to structural damage in Izmir Bay (Turkey) and Samos Island (Greece). It also highlights the importance of developing region-specific zoning and provisions for assessing extreme site effects, when general code practices may not be adequate.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Geological
Nikos Kalligeris et al.
Summary: On October 30th, 2020, a magnitude 7.0 earthquake off the northern coast of Samos, Greece triggered a tsunami that affected the Greek islands and the Aegean coast of Turkey. Detailed post-event field surveys revealed tsunami height and runup measurements on five islands. The warning message sent by the General Secretariat for Civil Protection of Greece to all cell phones in the eastern Aegean region before the second flood in Vathi highlights the importance of timely evacuation. Inferring complete tsunami hydrographs from measurements of the first two floods in Vathi revealed a rapid rise in water levels of about one meter overland flow depth.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Onur Onat et al.
Summary: An earthquake near Izmir, Turkey caused significant damage and casualties on Samos Island in the Aegean Sea on October 30, 2020. This paper aims to provide an overview of the seismotectonic characteristics of the region, the state of the building stock, and the structural damage caused by the earthquake.
Article
Engineering, Geological
Kemal Onder Cetin et al.
Summary: The unique soil and morphological conditions in the Izmir Bay basin have led to structural damage being governed by site effects, particularly evident during the M7.0 Samos Earthquake in October 2020. Soil amplifications and duration elongations were mainly due to the response of very deep alluvial deposits of low plasticity, while unexpected long period amplifications at rock sites were attributed to extensive faulting-induced fracturing and unusually stratified rock sub-layers. The study highlighted the triple resonance effects among incoming rock ground motions, soil deposits, and damaged buildings, which amplified and prolonged the overall system response.
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Geological
Ahmet Yakut et al.
Summary: The earthquake on October 30, 2020 caused significant damage to RC and masonry buildings in Izmir, with a focus on mid-rise buildings in the Bayrakli district. Amplified ground motions, building deficiencies, and lack of code compliance were identified as main reasons for the observed damage.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Geological
Selcuk Toprak et al.
Summary: This paper presents the effects of the Samos-Aegean Sea earthquake on hydraulic structures, lifelines, and industrial facilities in the western coast of Turkey. The damages to the infrastructure were mainly caused by building collapses and tsunami effects, while there were no significant damages reported on lifeline systems, large industrial facilities, and dams.
BULLETIN OF EARTHQUAKE ENGINEERING
(2022)
Article
Engineering, Marine
Niki Evelpidou et al.
Summary: On 30th October 2020, a Mw = 7.0 earthquake shook the eastern Aegean Sea near the northern coasts of Samos island, causing uplift of the whole island, infrastructure damage, and a small tsunami. Geological, geomorphological, and biological observations revealed a complex character for the uplift, with maximum vertical displacements in the northwestern part and subsidence in the southeastern part. The study validated the importance of tidal notches as markers of co-seismic events and provided insights into the complex tectonics of the area.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Geological
Renmin Pretell et al.
Summary: The seismic performance of Balboa Boulevard during the 1994 Northridge earthquake was studied using nonlinear deformation analyses to investigate the failure mechanism and key factors contributing to ground deformations. Geotechnical characterization revealed the compounded effect of liquefaction of sand-like soils and cyclic softening of clay-like soils on excessive ground deformations. This study emphasizes the importance of appropriate engineering procedures and numerical modeling protocols in predicting deformation patterns and selecting key input parameters.
JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
(2021)
Article
Geochemistry & Geophysics
Athanassios Ganas et al.
Summary: On October 30, 2020, a magnitude 7.0 earthquake occurred north of the island of Samos, Greece, activating a normal fault offshore the island. The earthquake caused permanent uplift of the island and subsidence in coastal areas, as well as liquefaction, rock falls and other effects in the surrounding areas.
Article
Engineering, Geological
Sinan Akkar et al.
Summary: The significance of rupture-plane uncertainty in estimated ground-motion intensity measures depends on the modeling complexity of the ground-motion predictive model and the spatial location of the site relative to the ruptured fault. Rupture-plane geometry affects predictor parameters in ground-motion models, increasing the potential impact of rupture-plane uncertainty on estimated ground-motion intensity measures, particularly with more complex models.
BULLETIN OF EARTHQUAKE ENGINEERING
(2021)
Article
Engineering, Geological
Konstantia Makra et al.
Summary: This study aims to provide evidence that the intensity of ground motion in the Bornova basin is mainly related to site effects, specifically basin effects. The research correlates empirical findings with the geological structure of the basin and proposes introducing extra amplification due to basin effects in design practice, as currently not explicitly included in modern seismic codes.
BULLETIN OF EARTHQUAKE ENGINEERING
(2021)
Article
Engineering, Geological
Ali Demir et al.
Summary: The study aims to simulate the behavior of the concrete Selimiye minaret damaged during the Izmir earthquake in 2020, and proposes a strengthening method based on Fabric Reinforced Concrete Mixture. Through finite element analysis, it is concluded that concrete minarets can be strengthened safely from the inner surface with the Steel Fabric Reinforced Concrete Mixture method.
BULLETIN OF EARTHQUAKE ENGINEERING
(2021)
Article
Engineering, Geological
A. Akinci et al.
Summary: This study provides a detailed description of the M-W 7.0 earthquake that occurred near the Greek island of Samos in 2020, analyzing the earthquake source, ground motion characteristics, and potential seismic risk based on geological data modeling and post-earthquake observations.
BULLETIN OF EARTHQUAKE ENGINEERING
(2021)
Article
Geosciences, Multidisciplinary
Ayhan Nuhoglu et al.
Summary: The study provides an analysis of the effects of the earthquake in Izmir city, focusing on the structural damage and potential geotechnical phenomena post-earthquake. The results show significant amplification of rock acceleration and basin effects, highlighting the impact on structures of poor construction quality.
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Christos Giarlelis et al.
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