An earthquake measuring 4 on Richter scale jolted surrounding areas of Dehloran city in western province of Ilam, close to the Iranian-Iraqi border, in the early hours of Sunday. According to the report of seismography center affiliated to Tehran University Geophysics Institute, the tremor epicenter was at 32.59 degrees latitude and 46.93 degrees longitude, Iran's News Agency (IRNA) reported. There is no immediate report on possible casualties or damage.