Green earthquake (Magnitude 6M, Depth:25km) in Chile 31/05/2026 21:34 UTC, 310 thousand in MMI V

Summary

Single-source GDACS detection — awaiting independent verification. A magnitude 6.0 earthquake at a shallow depth of 25 km struck Chile on 31 May 2026, with an estimated 310,000 people exposed to moderate (MMI V) shaking. The event’s medium severity and proximity to key mining regions warrant a precautionary supply chain review, though no corroborating news reports are yet available.

Supply chain impact

• Copper production and logistics in Chile, the world’s largest copper-producing nation, could face temporary disruption if mine sites or transport corridors experienced shaking strong enough to trigger safety stand-downs or infrastructure inspections.
• Lithium extraction operations, concentrated in Chile’s northern salt flats, may be affected if ground motion damaged brine pumping equipment, evaporation ponds, or access roads, potentially delaying shipments of battery-grade lithium carbonate.
• No logistics chokepoints are directly mapped to this event; second-order effects on export flows depend on whether port or rail infrastructure in the affected region sustained damage.

Watch points

• Reports from Chilean mining authorities or major operators (e.g., Codelco, SQM) confirming operational status and any production suspensions.
• Aftershock sequences that could cause cumulative damage to mine tailings dams, power lines, or road networks serving copper and lithium sites.
• Export shipment delays or force majeure declarations from Chilean ports handling copper concentrates and lithium products.