scholarly journals An example of secondary fault activity along the North Anatolian Fault on the NE Marmara Sea Shelf, NW Turkey

2007 ◽  
Vol 59 (6) ◽  
pp. 541-552 ◽  
Author(s):  
Huseyin Tur
Keyword(s):  
North Anatolian Fault ◽  
Marmara Sea ◽  
Fault Activity ◽  
The North ◽  
Nw Turkey ◽  
Secondary Fault

scholarly journals Secondary Fault Activity of the North Anatolian Fault near Avcilar, Southwest of Istanbul: Evidence from SAR Interferometry Observations

2016 ◽  
Vol 8 (10) ◽  
pp. 846 ◽  
Author(s):  
Faqi Diao ◽  
Thomas Walter ◽  
Federico Minati ◽  
Rongjiang Wang ◽  
Mario Costantini ◽  
...  
Keyword(s):  
North Anatolian Fault ◽  
Sar Interferometry ◽  
Fault Activity ◽  
The North ◽  
Secondary Fault

scholarly journals Segmentation and Holocene Behavior of the Middle Strand of the North Anatolian Fault (NW Turkey)

2021 ◽  
Author(s):  
Yacine Benjelloun ◽  
Julia De Sigoyer ◽  
Stéphane Garambois ◽  
Julien Carcaillet ◽  
Yann Klinger
Keyword(s):  
North Anatolian Fault ◽  
The North ◽  
Nw Turkey

SEPTEMBER 26, 2019 Mw5.8 MARMARA SEA-SILIVRI (ISTANBUL) EARTHQUAKE: ANALYSIS OF GROUND MOTION RECORDS

2020 ◽  
Author(s):  
Seyhan Okuyan Akcan ◽  
Can Zulfikar
Keyword(s):  
Ground Motion ◽  
North Anatolian Fault ◽  
Marmara Region ◽  
Marmara Sea ◽  
The North ◽  
Tectonically Active ◽  
Earthquake Research ◽  
Earthquake Research Institute ◽  
Ground Motion Records ◽  
Almost All

<p>Marmara region located on the western end of the North Anatolian Fault Zone is a tectonically active region in Turkey. There have been frequent severe earthquakes in the region and will continue to occur. There was no serious earthquake in the region after the 1999 Mw7.4 Kocaeli and Mw7.2 Düzce earthquakes. A Marmara Sea offshore earthquake Mw5.8 close to Silivri Town of Istanbul Metropolitan City has occurred on September 26, 2019 daytime at 13:59. The earthquake happened at the coordinate of 40.87N – 28.19E with a depth of 7.0km on the Kumburgaz segment of the North Anatolian Fault line. It was felt in almost all Marmara region. In some settlements in Istanbul City, slight to moderate damages were observed. A foreshock earthquake of Mw4.8 occurred on the same segment on 24 September, 2019. 150 aftershock events ranging from M1.0 to M4.1 have been recorded within the 24 hours after the mainshock. The ground motions have been recorded in the region by the several institutions including AFAD (Disaster and Emergency Management Presidency), KOERI (Kandilli Observatory and Earthquake Research Institute) and IGDAS (Istanbul Gas Distribution Industry and Trade Inc.). The ground motion records and selected parameters have been examined in this study. The ground motion parameters (MMI, PGA, PGV, Sa, Sv, Sd) distribution have been achieved and checked by the recent NGA-West2 ground motion prediction equations (GMPEs); ASK2014, CY2014 and BSSA2014. The compatibility of the GMPEs for a moderate size Marmara Sea earthquake has been examined.</p>

scholarly journals Active subaquatic fault segments in Lake Iznik along the middle strand of the North Anatolian Fault, NW Turkey

Tectonics ◽  
2020 ◽  
Author(s):  
R. Gastineau ◽  
J. Sigoyer ◽  
P. Sabatier ◽  
S. C. Fabbri ◽  
F. S. Anselmetti ◽  
...  
Keyword(s):  
North Anatolian Fault ◽  
The North ◽  
Nw Turkey

scholarly journals Late Miocene transcurrent tectonics in NW Turkey: evidence from palaeomagnetism and 40Ar–39Ar dating of alkaline volcanic rocks

2007 ◽  
Vol 144 (2) ◽  
pp. 379-392 ◽  
Author(s):  
N. KAYMAKCI ◽  
E. ALDANMAZ ◽  
C. LANGEREIS ◽  
T. L. SPELL ◽  
O. F. GURER ◽  
...  
Keyword(s):  
Fault Zone ◽  
Late Miocene ◽  
Active Faults ◽  
Volcanic Rocks ◽  
Volcanic Eruptions ◽  
North Anatolian Fault ◽  
Lava Flows ◽  
North Anatolian Fault Zone ◽  
The North ◽  
Nw Turkey

A number of intra-continental alkaline volcanic sequences in NW Turkey were emplaced along localized extensional gaps within dextral strike-slip fault zones prior to the initiation of the North Anatolian Fault Zone. This study presents new palaeomagnetic and 40Ar–39Ar geochronological results from the lava flows of NW Turkey as a contribution towards understanding the Neogene–Quaternary tectonic evolution of the region and possible roles of block rotations in the kinematic history of the region. 40Ar–39Ar analyses of basalt groundmass indicate that the major volume of alkaline lavas of NW Turkey spans about 4 million years of episodic volcanic activity. Palaeomagnetic results reveal clockwise rotations as high as 73° in Thrace and 33° anticlockwise rotations in the Biga Peninsula. Movement of some of the faults delimiting the areas of lava flows and the timing of volcanic eruptions are both older than the initiation age of the North Anatolian Fault Zone, implying that the region experienced transcurrent tectonics during Late Miocene to Pliocene times and that some of the presently active faults in the region are reactivated pre-existing structures.

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