Insar analysis of ayvacik 2017 (mw 5.3) earthquake swarm (canakkale, nw-Turkey)


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ABDİKAN S., Imamoglu M., Alasag T., Toker M., Kutoglu S., ŞAHİN Ş.

4th ISPRS Geospatial Week 2019, Enschede, Hollanda, 10 - 14 Haziran 2019, cilt.42, ss.1907-1911 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 42
  • Doi Numarası: 10.5194/isprs-archives-xlii-2-w13-1907-2019
  • Basıldığı Şehir: Enschede
  • Basıldığı Ülke: Hollanda
  • Sayfa Sayıları: ss.1907-1911
  • Anahtar Kelimeler: Ayvacik, earthquake, InSAR, seismicity, stress-drop
  • Van Yüzüncü Yıl Üniversitesi Adresli: Evet

Özet

© Authors 2019.In this study, the deformation of Ayvacik Canakkale earthquake and aftershocks of 5.3 (Mw), which were observed on 6 February 2017 in Gulpinar Ayvacik and felt from the surrounding cities, were analyzed by InSAR and strain reduction technique. The earthquake is occurred at the Biga peninsula which is located at the south segment of North Anatolian Fault zone. The first shock (Ml Combining double low line 4.8) started on 14 January 2017 in the region, and after the second shock (Ml Combining double low line 5.4) on February 6, 2017, seismic storm continued with the large and small earthquakes. It was seen that 31 of these earthquakes have a size of 4 and above and occurred on the Tuzla fault. Since classical geodetic methods are not performed regularly and frequently, and are spatially provide point-based displacements, they are often insufficient to monitor sudden earthquakes. For this purpose, the deformation values were obtained along the line of sight (LOS) direction of Synesthetic Aperture Radar (SAR) sensor using Differential Interferometric SAR (DInSAR) method. For the geophysical analysis coulomb technique was applied and the continuity of the changes in the sea is determined.