2025-06-12T01:17:31.0000Z40.8597228.38754.9manualconfirmedKOERI2.8ML1Origin/20250612013025.93601.143524Magnitude/20250612013025.936066.143525KOERIMarmara Denizi - [19.05 km] Büyükçekmece (İstanbul)region name