2026-04-06T23:58:29.625144Z-41.66617202758789-87.9010391235351610manualconfirmedIAG4.89734740981928mb1Origin/20260407163648.863921.170563Magnitude/20260407163648.863984.170564earthquakeIAGWest Chile Riseregion nameusp2026gtkhcontributorID