An earthquake measuring 4.6 on Richter scale jolted surrounding area of Ab-bar in the Iranian Zanjan province on Sunday. The report of seismography center affiliated to Tehran University Geophysics Institute said that the tremor occurred on Sunday morning and its epicenter was at 36.75 degrees latitude and 49.06 degrees longitude, according to Iran\'s (IRNA) News Agency. There is no immediate report on possible casualties or damage.