A 6.3-magnitude earthquake struck copper-rich northern Chile on Monday, but there were no reports of damage at major mines and authorities reported no injuries or risk of tsunami.
State miner Codelco, the world's top copper producer, said its Chuquicamata, Radomiro Tomic and Al Abra mines were operating normally after the quake. Teck Resources also says there was no impact at its Quebrada Blanca mine, Reuters reports.
The US Geological Survey said the quake struck 88km northeast of Calama, at a depth of 111km, near the largest mines in Chile, which produces around a third of the world's mined copper.
An 8.8-magnitude earthquake and tsunamis struck Chile's central south in February last year, ravaging local infrastructure and industries but leaving mines in the far north untouched.