BRIEF-Russia Mechel swings to $690.7 mln Q1 loss

MOSCOW, July 10 (Reuters) - Russia's Mechel (MTL.N)

* Mechel Q1 net loss $690.7 vs yr-earlier profit of $500 mln

* Q1 EBITDA loss $474.3 mln vs yr-earlier profit $853.1 mln

* Q1 Revenue $1.179 bln, down 49 pct y/y (Reporting by Alfred Kueppers)