2025-12-21T22:25:37.0000Z-55.3061-27.401615.064manualconfirmedIRIS4.7mb1Origin/20251221234229.849777.19807Magnitude/20251221234229.849848.19808IRISSOUTH SANDWICH ISLANDS REGIONregion nameNEIC PDEcatalogus6000rwe5contributorID