An earthquake measuring 4.4 on Richter scale jolted surrounding areas of Naghan in Charmahal & Bakhtiari province on Wednesday early morning. According to the report of seismography center affiliated to Tehran University Geophysics Institute, the tremor''s epicenter was at 31.85 degrees latitude and 50.66 degrees longitude. There is no immediate report on possible casualties or damage. Another earthquake measuring 4.2 on Richter scale jolted surrounding areas of Sarbisheh in South Khorasan province on Tuesday evening, Iran''s news agency (IRNA) reported. According to a report of the seismography center, the tremor''s epicenter was at 32.30 degrees latitude and 59.96 degrees longitude.