2025-08-28T18:03:41.0000Z40.8327828.316676.92manualconfirmedKOERI2.4ML1Origin/20250828183524.967144.394627Magnitude/20250828183524.967197.394628KOERIMarmara Denizi - [24.75 km] Büyükçekmece (İstanbul)region name