smi:franceseisme.fr/origin/822783smi:franceseisme.fr/magnitude/2020639quarry blastQuarry blast of magnitude 1.6, near Saint-Brieuc2025-02-28T12:49:43.016999Z0.0368196096889.9999976248.628551480.390520030289.99999762-3.0537786480.242206659489.999997620.00.0operator assignedLOCSAThaslach_taup-2.4.5hypocenterpreliminarymanualOSUNAclement.perrin139960.3319408611128.58588030.4138265551.3509346250.80749571321.5652212240.09796677908MLvsmi:franceseisme.fr/origin/822783trimmed mean7confirmedOSUNAclement.perrin