TEHRAN, Dec. 27 (Xinhua) -- A mild earthquake at the scale of 4.2 Richter is felt in Iranian capital Tehran and suburbs in early hours of Wednesday morning.

The epicenter of the quake has been reported to be on the border between Tehran and Alborz provinces, near the city of Malard.

According to state TV report, the magnitude of the seismic event was 4.2 and occurred in the depth 12 kilometers. No casualties have been reported so far.