Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Geotechnical reconnaissance findings of the October 30 2020, Mw7.0 Samos Island (Aegean Sea) earthquake
Download
index.pdf
Date
2022-11-01
Author
Ziotopoulou, Katerina
Çetin, Kemal Önder
Pelekis, Panagiotis
Altun, Selim
Klimis, Nikolaos
SEZER, ALPER
Rovithis, Emmanouil
Yılmaz, Mustafa Tolga
Papadimitriou, Achilleas G.
Gülerce, Zeynep
Can, Gizem
Ilgaç, Makbule
Çakır, Elife
Söylemez, Berkan
Al-Suhaily, Ahmed
Elsaid, Alaa
Zarzour, Moutasem
Ecemis, Nurhan
Unutmaz, Berna
Kockar, Mustafa Kerem
Akgun, Mustafa
Kincal, Cem
Bayat, Ece Eseller
Ozener, Pelin Tohumcu
Stewart, Jonathan P.
Mylonakis, George
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
193
views
82
downloads
Cite This
On October 30, 2020 14:51 (UTC), a moment magnitude (Mw) of 7.0 (USGS, EMSC) earthquake occurred in the Aegean Sea north of the island of Samos, Greece. Turkish and Hellenic geotechnical reconnaissance teams were deployed immediately after the event and their findings are documented herein. The predominantly observed failure mechanism was that of earthquake-induced liquefaction and its associated impacts. Such failures are presented and discussed together with a preliminary assessment of the performance of building foundations, slopes and deep excavations, retaining structures and quay walls. On the Anatolian side (Turkey), and with the exception of the Izmir-Bayrakli region where significant site effects were observed, no major geotechnical effects were observed in the form of foundation failures, surface manifestation of liquefaction and lateral soil spreading, rock falls/landslides, failures of deep excavations, retaining structures, quay walls, and subway tunnels. In Samos (Greece), evidence of liquefaction, lateral spreading and damage to quay walls in ports were observed on the northern side of the island. Despite the proximity to the fault (about 10 km), the amplitude and the duration of shaking, the associated liquefaction phenomena were not pervasive. It is further unclear whether the damage to quay walls was due to liquefaction of the underlying soil, or merely due to the inertia of those structures, in conjunction with the presence of soft (yet not necessarily liquefied) foundation soil. A number of rockfalls/landslides were observed but the relevant phenomena were not particularly severe. Similar to the Anatolian side, no failures of engineered retaining structures and major infrastructure such as dams, bridges, viaducts, tunnels were observed in the island of Samos which can be mostly attributed to the lack of such infrastructure.
Subject Keywords
Reconnaissance
,
Samos earthquake
,
Liquefaction
,
Lateral spreading
,
Slopes
,
Retaining structures
,
Foundations
,
Seismic performance
,
FIELD OBSERVATIONS
,
GREECE
,
Foundations
,
Lateral spreading
,
Liquefaction
,
Reconnaissance
,
Retaining structures
,
Samos earthquake
,
Seismic performance
,
Slopes
URI
https://hdl.handle.net/11511/101844
Journal
Bulletin of Earthquake Engineering
DOI
https://doi.org/10.1007/s10518-022-01520-x
Collections
Department of Civil Engineering, Article
Suggestions
OpenMETU
Core
24 January 2020, Sivrice-Elazig-Turkey Earthquake Reconnaissance Report
Çetin, Kemal Önder; Ilgaç, Makbule; Can, Gizem; Çakır, Elife; Söylemez, Berkan (2020-2-19)
On January 24, 2020 20:55:11 (UTC), a moment magnitude Mw 6.8 (AFAD) or 6.7 (USGS) earthquake occurred on the East Anatolian Fault zone, due to a NE-SW strike-slip fault rupture along the Sivrice-Pütürge Segment in Elazığ, Turkey. Within the confines of this project, the findings of geological, seismological and geotechnical and structural reconnaissance studies as well as preliminary field investigation studies are published. In addition to geological and geotechnical evaluations in the course of reconna...
Seismic performance of mid-rise reinforced concrete buildings in Izmir Bayrakli after the 2020 Samos earthquake
Demirel, Ismail Ozan; Yakut, Ahmet; Binici, Barış (2022-07-01)
© 2022 Elsevier LtdOn October 30th 2020, offshores of Samos Island, Greece was hit by a shallow earthquake of Mw = 6.9 moment magnitude. Located 76 km away from the earthquake's epicenter, the mid-rise reinforced concrete (RC) building stock of the densely populated Izmir Bayrakli district experienced the most severe structural damage. Although the horizontal peak ground acceleration recorded at the site (PGA = 0.11 g) was well below design values recommended by the past and the present Turkish seismic code...
Reconnaissance of 2020 M 7.0 Samos Island (Aegean Sea) earthquake
Çetin, Kemal Önder; Sextos, Anastasios; Stewart, Jonathan P. (2021-08-01)
The Samos Island (Aegean Sea) Earthquake occurred on 30 October 2020. It produced a tsunami that impacted coastal communities, ground shaking that was locally amplified in some areas and that led to collapse of structures with 118 fatalities in both Greece and Turkey, and wide-ranging geotechnical effects including rockfalls, landsliding, and liquefaction. As a result of the global COVID-19 pandemic, the reconnaissance of this event did not involve the deployment of international teams, as would be typical ...
Real-time experimental forecast of the Peruvian tsunami of August 2007 for US coastlines
Wei, Yong; Bernard, Eddie N.; Tang, Liujuan; Weiss, Robert; Titov, Vasily V.; Moore, Christopher; Spillane, Michael; Hopkins, Mike; Kanoğlu, Utku (American Geophysical Union (AGU), 2008-02-27)
At 23: 41 UTC on 15 August 2007, an offshore earthquake of magnitude 8.0 severely damaged central Peru and generated a tsunami. Severe shaking by the earthquake collapsed buildings throughout the region and caused 514 fatalities. The tsunami resulted in three casualties and a representative maximum runup height of similar to 7 m in the near field. The first real-time tsunami data available came from a deep-ocean tsunami detection buoy within 1 hour of tsunami generation. These tsunami data were used to prod...
Geotechnical aspects of reconnaissance findings after 2020 January 24th, M6.8 Sivrice–Elazig–Turkey earthquake
Çakır, Elife; Çetin, Kemal Önder; Ilgaç, Makbule; Can, Gizem; Elsaid, Alaa; Söylemez, Berkan; Cuceoglu, Faik; Gülerce, Zeynep; Aydin, Seckin; Askan Gündoğan, Ayşegül; Gor, Mesut (2021-01-01)
On January 24, 2020, Sivrice–Elazig–Turkey earthquake occurred along the East Anatolian Fault Zone. The moment magnitude of the event was reported as 6.8. This paper documents reconnaissance findings performed immediately after the event. Investigated sites namely, Lake Hazar shores, Karakaya Dam Reservoir–Euphrates River shores, Malatya–Battalgazi district and its villages, and Elazig Downtown are predicted to be shaken by rock peak ground acceleration, PGAVS30=1100 m/s, levels of 0.12–0.42 g, 0.05–0.11 g,...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
K. Ziotopoulou et al., “Geotechnical reconnaissance findings of the October 30 2020, Mw7.0 Samos Island (Aegean Sea) earthquake,”
Bulletin of Earthquake Engineering
, vol. 20, no. 14, pp. 7819–7852, 2022, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/101844.