Birjand, South Korasan Prov, April 7, IRNA - An earthquake measuring 4.2 on the Richter scale shook Sarbisheh region in this eastern province on Monday. According to seismological base of the Geophysics Institute of Tehran University, the quake occurred at 04:42 hours local time (00:12 GMT). The quake was epicentered in an area located at 32.47 ...