A5089098998- earthquake and tectonic studies
- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- High-pressure geophysics and materials
- Marine and environmental studies
- Seismic Waves and Analysis
- Family Caregiving in Mental Illness
- Workaholism, burnout, and well-being
- Seismic Imaging and Inversion Techniques
- Manufacturing Process and Optimization
- Dialysis and Renal Disease Management
- Welding Techniques and Residual Stresses
- Aging, Health, and Disability
- Geothermal Energy Systems and Applications
- Seismic Performance and Analysis
- Laser and Thermal Forming Techniques
- Geophysics and Gravity Measurements
Kandilli Observatory and Earthquake Research Institute
2017-2023
Boğaziçi University
2017-2023
Seismic background noise dramatically decreased as a result of lockdown measures in place for mitigating the spread COVID-19.
Abstract Physical laws governing friction on shallow faults in the Earth and spatial heterogeneity of parameters are critical to our understanding earthquake physics assessment hazards. Here we use a laboratory-derived fault-friction law high-quality strong-motion seismic recordings 2020 Elazığ earthquake, Turkey, reveal complex rupture dynamics. We discover an initial Mw 5.8 stage explain how cascading behavior event, involving at least three episodes, each M > 6, caused it evolve into...
Key to studies of the rupture process is identification its major segmentation into asperities. Common multi-parametric methods invert for a continuous slip distribution; they usually rely on predefined fault position, nucleation point, planarity, smoothing, etc. Here we propose more flexible low-parametric inversions - multi-point seismic source models, and multi-patch GPS models. We study recent Mw 7.8 7.5 earthquakes in Eastern-Anatolian system, recorded high-quality near-regional network...
Abstract Damages due to large earthquakes are influenced by broadband source effects that remain enigmatic. Here we develop a (0–10 Hz) model of the disastrous 2023 Mw7.8 Kahramanmaraş, Türkiye, earthquake modeling recordings 100 stations. The combines coherent and incoherent rupture propagation at low high frequencies, respectively. We adopt planar 300 km long kinked fault geometry from geology pre-constrain slip seismic geodetic data. demonstrate southwestward was delayed ~15 s observed...
Abstract Turkey is located in a seismically active region with complex tectonic history. In order to perform seismic risk assessment precisely, major fault zones (North Anatolian Fault Zone and East Zone) that are well defined monitored continuously. It widely known fact intraplate settings, such as Plate, which devastating earthquakes may occur, need be observed densely. this study, we investigate the seismotectonics of Malatya within Ovacık (MOFZ), one agents responsible for internal...
We used full waveforms of the Hellenic Unified Seismic Network (HUSN) regional stations and a frequency range 0.03-0.06 Hz. calculated moment tensors (MTs) focused on their ISO CLVD components. In tested depth 1-20 km, medians (=VOL) are positive, but 68% confidence intervals broad due to tradeoff non-DC with depth. When constraining source depths ≥ 7 indicated by relocations, MTs have unambiguously positive CLVD, pointing shear-opening process.
We used full waveforms of the Hellenic Unified Seismic Network (HUSN) regional stations and a frequency range 0.03-0.06 Hz. calculated moment tensors (MTs) focused on their ISO CLVD components. In tested depth 1-20 km, medians (=VOL) are positive, but 68% confidence intervals broad due to tradeoff non-DC with depth. When constraining source depths ≥ 7 indicated by relocations, MTs have unambiguously positive CLVD, pointing shear-opening process.
This study explores the integration of advanced artificial intelligence (AI) techniques into seismic monitoring framework Kandilli Observatory and Earthquake Research Institute (KOERI), enhancing accuracy reliability event detection, location, magnitude determination. The implementation leverages graph neural networks (GNNs) for phase association location problems, alongside pretrained AI models picking. GNN is trained using datasets from both Marmara Maraş regions, resulting...
The Sea of Marmara, located along the North Anatolian Fault (NAF) system, represents a geologically significant region where fault’s bifurcation into northern and southern branches plays key role in shaping region's tectonic framework.  The NAF, acting as primary driver, has not only shaped basin's morphology but also controlledits seismicity, making area for studying active processes earthquake hazards. İzmit Gulf, at easternmost part Marmara Sea, is particular...
A tsunami warning system providing services in the Eastern Mediterranean, Aegean, Marmara and Black Seas under UNESCO Intergovernmental Oceanographic Commission (IOC)—Intergovernmental Coordination Group (ICG) for Tsunami Early Warning Mitigation System North-Eastern Atlantic, Mediterranean Connected (NEAMTWS) framework was established Turkey by Kandilli Observatory Earthquake Research Institute (KOERI) (Özel et al., 2011). KOERI’s Regional Monitoring Center (RETMC) on foundations of legacy...
Abstract As the earliest institute in Turkey dedicated to locating, recording, and archiving earthquakes region, Kandilli Observatory Earthquake Research Institute (KOERI) has a long history seismic observation, which dates back installation of its first seismometers soon after devastating Istanbul earthquake 10 July 1894. For over century, since deployment seismometer, KOERI network grown steadily time. In this article, we present facilities as data center for seismological community,...
Abstract The submarine Main Marmara fault is overdue for an M > 7 earthquake in direct vicinity to the Istanbul megacity and only segment of right-lateral North Anatolian zone that has not been activated since 1766. On 26 September 2019, Mw 5.7 occurred offshore Silivri (west Istanbul), stimulating discussions on a future major earthquake. predominant faulting style this pending remains enigmatic. Here, we study coseismic rupture evolution 2019 decipher multitype-faulting aspects by...
Seismicity catalogs are the most important product of seismic network operating centers, especially for earthquake hazard studies. Understanding nature regional catalogues has primary importance in shedding light on statistical parameters seismicity behavior that given region. It is a well-known fact artificial effects exist catalogues. Precisely determined not only understanding and seismotectonics region, but also providing an accurate estimation risk parameters. In this study, we present...
2005 yılından beri Kandilli Rasathanesi ve Deprem Araştırma Ensititüsü (KRDAE), Bölgesel Deprem-Tsunami İzleme Değerlendirme Merkezi (BDTİM) Türkiye civarında meydana gelen büyüklüğü M≥4.5 olan depremler için kaynak parametrelerini belirlemekte çözümlerini araştırmacılar paylaşmaktadır. Bu çalışmada da M≥4.2 146 deprem (2016-2019) BDTİM Başbakanlık İçişleri Bakanlığı Afet Acil Durum Yönetimi Başkanlığı Dairesi (AFAD)’ne ait yakın-alan bölgesel dalga şekilleri kullanılarak parametreleri...