2025-06-01T00:53:34.0000Z40.8436128.418897.01manualconfirmedKOERI1.3ML1Origin/20250601011546.061878.51411Magnitude/20250601011546.061931.51412KOERIMarmara Denizi - [19.51 km] Büyükçekmece (İstanbul)region name