2025-07-25T06:43:42.0000Z40.8591728.413066.98manualconfirmedKOERI1.7ML1Origin/20250725071049.443196.38884Magnitude/20250725071049.443249.38885KOERIMarmara Denizi - [18.23 km] Büyükçekmece (İstanbul)region name