2025-02-09T16:38:04.0000Z-49.3921123.273910manualconfirmedIRIS4.7mb1Origin/20250209165814.437213.93351Magnitude/20250209165814.437266.93352IRISWESTERN INDIAN-ANTARCTIC RIDGEregion nameNEIC PDEcatalogus7000pchwcontributorID