smi:franceseisme.fr/origin/804253smi:franceseisme.fr/magnitude/1976495quarry blastQuarry blast of magnitude 1.7, near Laval2024-12-20T11:42:52.733279Z0.0165883242389.9999976248.121875760.120811817389.99999762-1.0448764560.151053789.999997620.00.0operator assignedLOCSAThaslach_taup-2.4.5hypocenterpreliminarymanualOSUNAclement.perrin191912120.359303637558.457786560.20088578761.4851487870.96399974821.6822485110.1259980748MLvsmi:franceseisme.fr/origin/804253trimmed mean7confirmedOSUNAclement.perrin