Bojnourd, North Khorasan prov, Oct 9, IRNA An earthquake measuring 4.3 on the Richter scale shook Shoqan, a suburb of Jajarm in North Khorasan, northeastern Iran, on Thursday.   According to seismological base of the Geophysics Institute of Tehran University, the quake occurred at 13:03 hours local time (09:33 GMT) and its epicenter was ...