UPDATE 1-Quake hits Chile's mining north, no damage reported
* Codelco says major mines operating normally
* No reported injuries or tsunami risk (Updates with reports from mines, emergency office, previous WASHINGTON)
SANTIAGO, June 20 (Reuters) - 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 [CODEL.UL], the world's top copper producer, said its Chuquicamata, Radomiro Tomic and Al Abra mines were operating normally after the quake. Teck Resources (TCKb.TO) also reported no impact at its Quebrada Blanca mine.
The U.S. Geological Survey said the earthquake struck 55 miles (88 km) northeast of Calama, at a depth of 69 miles (111 km), near the largest mines in Chile, which produces around a third of the world's mined copper.
The navy said there was no tsunami warning after the quake and the national emergency office said there was no reported damage or injuries after the quake.
An 8.8 magnitude earthquake and tsunamis struck Chile's central south in February 2010, ravaging local infrastructure and industries but leaving mines in the far north untouched.
(Reporting by Santiago Newsroom; Editing by Will Dunham)