Temporary Strong Ground Motion Observation in Damaged Areas of The 2023 Kahramanmaraş Earthquake
- 1Bogazici University, Kandilli Observatory and Earthquake Research Instittute, Geophysics, Istanbul, Türkiye (pinar.duran@boun.edu.tr)
- 2Tokyo Institute of Technology
- 3Hokkaido University
- 4Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology
- 5Railway Technical Research Institute
- 6Disaster and Emergency Management Authority of Turkey
- 7Istanbul University - Cerrahpaşa
- 8Kocaeli University
- 9Middle East Technical University
- 10Earthquake Research Institute, The University of Tokyo
- 11Kagawa University
ABSTRACT: We have conducted a temporary observation of earthquake ground motion of aftershocks of the 2023 Kahramanmaras earthquake in southern Turkey in the damaged areas for an acquisition of basic data to understand the earthquake damage. Strong motion accelerometers were installed at 21 stations in Pazarcik, central parts of Kahramanmaras and Adiyaman provinces, Iskenderun and Antakya in Hatay province. One of the stations in each area was selected in a mountain area as a reference station. The characteristics of the observed ground motion are investigated by spectral ratios of the stations to those at the reference stations. The site amplifications are not significantly different in Pazarcik. Most of the site effects in the damaged areas in the other regions are characterized with the large amplifications at frequencies less than 1 or 2 Hz. In particular the site effects are so significant in the damaged areas in Iskenderun, Antakya and Samandag.
Keywords: The 2023 Kahramanmaraş earthquake, temporary strong motion observation, strong motion records, aftershock, basin effects, site effects
How to cite: Duran, P., Yamanaka, H., Takai, N., Yoshimi, M., Tsuno, S., Ozmen, O. T., Ozel, O., Caka, D., Askan, A., Miyake, H., Chimoto, K., Ono, T., and Arslan, M. S.: Temporary Strong Ground Motion Observation in Damaged Areas of The 2023 Kahramanmaraş Earthquake, EGU General Assembly 2024, Vienna, Austria, 14–19 Apr 2024, EGU24-621, https://doi.org/10.5194/egusphere-egu24-621, 2024.
