Seismological networks of the Institute of Geophysics of the University of Tehran, recorded more than 950 earthquakes across the country over the past calendar month Ordibehesht (April 21-May 21). Two earthquakes of more than 4 on the Richter scale have been recorded in the country by the National Seismological Center, the largest of which occurred on May 17, with a magnitude of 5.5 near Sankhast in northeastern North Khorasan province ...