smi:franceseisme.fr/origin/926630smi:franceseisme.fr/magnitude/2350546quarry blastQuarry blast of magnitude 1.6, near Montbrison2026-04-30T08:03:43.637810Z0.00700911923889.9999976245.653198240.0573294155689.999997624.3150224690.0475644521589.999997620.00.0operator assignedLOCSAThaslach_taup-2.4.5hypocenterpreliminarymanualRENASSremi.dretzen414121210.317821043343.302209850.25754988191.4191690680.98293644191.5750373490.09825614874MLvsmi:franceseisme.fr/origin/926630trimmed mean13confirmedRENASSremi.dretzen