Figure 1 - uploaded by Gulten Polat
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Map showing the major earthquakes occurred near Istanbul city, since 1500 CE, along the western part of the North Anatolian Fault Zone with fault segments represented by black lines (modified from Ambraseys and Jackson, 2000). Numbers correspond to occurrence years of the earthquakes with magnitudes measured or estimated to be greater than 7.0. Şekil 1. 1500 yılından beri Istanbul şehri yakınlarında kırıkları siyah çizgilerle gösterilen Kuzey Anadolu Fay Zonu boyunca meydana gelen büyük depremler (Ambraseys ve Jackson, 2000'den değiştirilerek alınmıştır). Sayılar büyüklüğü 7.0 dan büyük olduğu ölçülen veya tahmin edilen depremlerin oluş yıllarına karşılık gelmektedir.
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Context 1
... geologic study carried out on the building stones of ancient Egypt well proved that a systematic quarrying organization was constructed to transport logistics over extreme distances and a high standard of stone masonry for the immense quantities of the different stone materials (Klemm and Klemm, 2001). Presently, one of these Obelisks, also known as the Obelisk of Theodosius, remains standing in the Hippodrome of Istanbul (Figure 1). In the years between 1479 and 1425 BCE, the Obelisk of Thutmose III originally stood at the temple of Karnak, Egypt. ...
Context 2
... history, many devastating earthquakes occurred in the city of Istanbul because of an active tectonic regime controlling the region. The long-term seismic activity of the Marmara region is exhibited in Fig. 1. As seen in Fig. 1, from 1500 to the present, many devastating earthquakes greater than 7 occurred in this region (e.g. Ambraseys and Jackson, 2000). Before this period, several earthquakes also should have occurred in this region. Such seismic events caused noticeable damages to the new and historical structures in ...
Context 3
... history, many devastating earthquakes occurred in the city of Istanbul because of an active tectonic regime controlling the region. The long-term seismic activity of the Marmara region is exhibited in Fig. 1. As seen in Fig. 1, from 1500 to the present, many devastating earthquakes greater than 7 occurred in this region (e.g. Ambraseys and Jackson, 2000). Before this period, several earthquakes also should have occurred in this region. Such seismic events caused noticeable damages to the new and historical structures in ...
Context 4
... geologic study carried out on the building stones of ancient Egypt well proved that a systematic quarrying organization was constructed to transport logistics over extreme distances and a high standard of stone masonry for the immense quantities of the different stone materials (Klemm and Klemm, 2001). Presently, one of these Obelisks, also known as the Obelisk of Theodosius, remains standing in the Hippodrome of Istanbul (Figure 1). In the years between 1479 and 1425 BCE, the Obelisk of Thutmose III originally stood at the temple of Karnak, Egypt. ...
Context 5
... history, many devastating earthquakes occurred in the city of Istanbul because of an active tectonic regime controlling the region. The long-term seismic activity of the Marmara region is exhibited in Fig. 1. As seen in Fig. 1, from 1500 to the present, many devastating earthquakes greater than 7 occurred in this region (e.g. Ambraseys and Jackson, 2000). Before this period, several earthquakes also should have occurred in this region. Such seismic events caused noticeable damages to the new and historical structures in ...
Context 6
... history, many devastating earthquakes occurred in the city of Istanbul because of an active tectonic regime controlling the region. The long-term seismic activity of the Marmara region is exhibited in Fig. 1. As seen in Fig. 1, from 1500 to the present, many devastating earthquakes greater than 7 occurred in this region (e.g. Ambraseys and Jackson, 2000). Before this period, several earthquakes also should have occurred in this region. Such seismic events caused noticeable damages to the new and historical structures in ...
Citations
... In this study, Nusretiye Clock Tower's seismic performance was assessed utilizing a discrete element method (DEM). With this approach, the seismic response of masonry buildings is captured using precise mechanical and geometrical features [2][3][4][5][6][7]. ...
... Istanbul is reportedly under threat from an earthquake with a magnitude of Mw 7.0 [15]. Four earthquakes with magnitude of 9 or higher occurred in Istanbul and its surroundings between the 16th and 20th centuries, according to the Historical Earthquake Catalogue for Turkey [5]. Investigating the seismic behaviour of the historical Nusretiye (Tophane) Clock Tower is intriguing given that Istanbul is preparing for a significant earthquake with a moment magnitude of greater than 7.0. ...
A probabilistic seismic hazard analysis was performed for İstanbul considering the seismotectonic structure of the region. Earthquakes that occur in seismic regions has the possibility of triggering each other to a certain extent, and this causes earthquakes to cluster in time and space. In this study, the Poisson model was preferred for probabilistic seismic hazard analysis. Conventional integration approach was adopted to calculate the hazard curves to describe the likelihood of exceeding ground motion in a particular period. This paper presents results on the impact of seismic hazard on structural performance of an existing masonry tower, by evaluating the seismic response for different levels of ground motions.
... According to these maps, the selected region is considered to show a seismic gap for an earthquake potential 4.5 of M up to 7.4. In addition to these earthquakes, Turkey and Environment Historical Earthquake Catalogue between the 16th and 20th centuries indicated four earthquakes with 9 or higher intensity occurred in Istanbul and its surroundings (Polat and Saygılı 2020). Since the İstanbul faces a significant earthquake with a moment magnitude above 7.0, it is worthwhile to understand the seismic behaviour of historical Nusretiye (Tophane) Clock Tower. ...
In this study, we have investigated the impacts of hazardous earthquakes on the Nusretiye Clock Tower which is one of the historical heritages located in the city of İstanbul. We analyzed the seismicity of the region and performed nonlinear dynamic analyses under real and artificial ground motion data set to contribute to protecting this cultural heritage and its transmission to future generations. To calculate the seismicity parameters (b- values, a- values, Magnitude of completeness) of the region, we have collected a current catalogue in the Marmara region whose coordinate range is 260-310 E longitudes and 400-420 N latitudes. The current catalogue is constructed from 15 April 1905 to 31 December 2020. A complete set of 29223 earthquakes of Md ≥ 1 obtained from Bogazici University, Kandilli Observatory and Earthquake Research Institute, Regional Earthquake-Tsunami Monitoring Center. In the light of the nonlinear dynamic analysis results, masonry tower is significantly vulnerable to suffer strong damage or collapse in an earthquake with a return period of 2475 years.
