Geotechnical damage survey report on February 6, 2023 Turkey-Syria Earthquake, Turkey

• DOI: 10.1016/j.sandf.2024.101463
• Publication Date: 2024-05-09T05:34:35Z
• Authors: Tetsuo Tobita; Takashi Kiyota; Seda Torisu; Ozer Cinicioglu; Gokce Tonuk; Nikolay Milev; Juan Contreras; Othón Contreras; Masataka Shiga
• Keywords: Liquefaction; Landslide; Geotechncial damage; 2023 Turkey-Syria Earthquake; TA703-712; Engineering geology. Rock mechanics. Soil mechanics. Underground construction; 01 natural sciences; Reconnaissance; 0105 earth and related environmental sciences

In response to the significant earthquakes that struck Turkey and Syria on February 6, 2023, a collaborative reconnaissance team, consisting of researchers engineers from Japan Turkey, was formed by Association for Earthquake Engineering, Architectural Institute Japan, Society Civil Engineers, Japanese Geotechnical Society. This coalition conducted an in-depth on-site investigation March 28 April 2, two months after catastrophic seismic events. Islahiye, landslide resulted in formation dam. Another occurred Tepehan relatively gentle slope limestone, with possible correlations fault movements. Iskenderun encountered not just building collapses soft ground, but also instances tilting buildings ground subsidence attributed liquefaction reclaimed coastal soil. Golbasi witnessed liquefaction-induced damage structures shallow foundations involving settling. However, more comprehensive is required accurately map extent liquefied soil layers. Antakya Kahramanmaras emerged as regions where coincided surface vibrations. Despite severe collapses, Antakya's stable showed average S-wave velocity exceeding AVS30 400 m/s. suggests potential wave amplification due underlying geological structures. displayed notable concentrated alluvial fan formations.