Seismicity and GPS-derived crustal deformation in Egypt

GPS observations were carried out in three networks beginning in 1994 and repeated once a year to the present. Analysis of the repeated GPS campaigns from the three networks revealed horizontal movements at the level of 10–15 mm/a. Main characteristics of the seismotectonics of Egypt are investigated based on the geodetic results and the recently recorded seismic activity from 1900 to 2000. Accordingly, Egypt may be divided into eight seismic zones.