S U M M A R YThe 2011 October 23 M W 7.1 Van earthquake in eastern Turkey caused ∼600 deaths and caused widespread damage and economic loss. The seismogenic rupture was restricted to 10-25 km in depth, but aseismic surface creep, coincident with outcrop fault exposures, was observed in the hours to months after the earthquake. We combine observations from radar interferometry, seismology, geomorphology and Quaternary dating to investigate the geological slip rate and seismotectonic context of the Van earthquake, and assess the implications for continuing seismic hazard in the region. Transient post-seismic slip on the upper Van fault started immediately following the earthquake, and decayed over a period of weeks; it may not fully account for our long-term surface slip-rate estimate of ≥0.5 mm yr −1 . Post-seismic slip on the Bostaniçi splay fault initiated several days to weeks after the main shock, and we infer that it may have followed the M W 5.9 aftershock on the 9th November. The Van earthquake shows that updip segmentation can be important in arresting seismic ruptures on dip-slip faults. Two large, shallow aftershocks show that the upper 10 km of crust can sustain significant earthquakes, and significant slip is observed to have reached the surface in the late Quaternary, so there may be a continuing seismic hazard from the upper Van fault and the associated splay. The wavelength of folding in the hanging wall of the Van fault is dominated by the structure in the upper 10 km of the crust, masking the effect of deeper seismogenic structures. Thus, models of subsurface faulting based solely on surface folding and faulting in regions of reverse faulting may underestimate the full depth extent of seismogenic structures in the region. In measuring the cumulative post-seismic offsets to anthropogenic structures, we show that Structure-from-Motion can be rapidly deployed to create snapshots of postseismic displacement. We also demonstrate the utility of declassified Corona mission imagery (1960s-1970s) for geomorphic mapping in areas where recent urbanization has concealed the geomorphic markers.

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The most important turning point in Turkish history of the Çanakkale War, known in English as the Dardanelles Campaign, the Battle of Gallipoli, or the Battle of Çanakkale, involves many omissions in terms of historical records due to the situation facing the country at the time and the threats from both internal and external enemies. Though there is very valuable information like notes and maps left by officers in the Ottoman army (Col. Şevki Paşa etc.), due to the intense severity of the war much important information has not been transferred directly to the present day. Most probably, one of the areas with greatest omissions is the location of war grave sites (martyr's cemeteries). The main reason for this is considered to be the excessive number of fallen soldiers or martyrs and the extreme loss of life in a very short period. In spite of these negative aspects, the locations of many war grave sites have been determined by detailed research by historians and the use of maps drawn during wartime. However, in these cemetery areas, approximate locations were defined for war graves and in line with this, areas were fenced off as war cemeteries. Using the same logic, an area closes to the location used as Biga War hospital during the Çanakkale War was renovated and opened to visitors as Biga War Cemetery with gravestones in certain locations. The high-resolution, non-destructive shallow geophysical method of ground-penetrating radar (GPR) has been widely used with the aim of identifying structural elements that are buried (graves, tunnels, archeological remains, etc.). In line with this, its use to research war grave sites in areas known as war cemeteries will illuminate the past and contribute to reorganizing war cemeteries according to war grave locations and providing the necessary importance and respect that war cemeteries deserve.

Son yıllarda yer bilimleri araştırmalarında, sığ derinliklerdeki yeraltına ait bilgilerin detaylı ve hızlı belirlenmesinde kullanılan sığ jeofizik uygulamalardan biri Yeraltı Radarı (Ground Penetrating Radar/GPR) yöntemidir. Bu çalışmada; Simav ve civarında yer alan aktif faylar boyunca, daha önce saha çalışmaları ile belirlenen 3 farklı lokasyonda toplam 5 adet profil ile fayın doğrultusuna dik olacak şekilde GPR çalışmaları yapılmıştır. Bunun sonucunda, Simav civarında yer alan aktif faylardaki, düşey yöndeki yer değiştirme miktarları belirlenmeye çalışılmıştır. Yapılan çalışmalara göre; birinci GPR profilinin gerçekleştirildiği alanda 30 cm ile 80 cm arasında değişen atımlar, ikinci GPR profilinin gerçekleştirildiği alanda 50 cm ile 70 cm arasında değişen atımlar, üçüncü GPR profilinin gerçekleştirildiği alanda 40 cm atım verisi elde edilmiştir. Tüm bu atım verileri; günümüzde bir miktar doğrultu atım bileşenine sahip olan, ancak ana karakteri normal fay olan Simav Fayı'nın düşey atım verilerini temsil etmektedir. Tüm bu veriler, yapılacak olan paleosismoloji çalışmaları için bir altlık oluşturmakta olup, verilerin ve yorumların kesin doğruluğu ancak paleosismoloji çalışmaları sonucunda belirlenebilir.