2025-07-31T00:00:35.7Z38.2759134.3433420.741manualconfirmedUSGS4.1mb1Origin/20250731031805.191429.97853Magnitude/20250731031805.19152.978542025-07-31T03:18:03.848622Z2025-07-31T03:18:05.623207ZSea of Japanregion nameOrigin/20250731031805.191429.97853