Aftershock study of the November 22, 1995 (Mw=7.3) Gulf of Aqabah earthquake, Midyan Region, Saudi Arabia

The purpose of this thesis is to study the seismic activity in the Midyan region of Northwestern Saudi Arabia from November 22, 1995 to January 3, 1996. The Gulf of Aqabah has been considered one of the most active seismogenic zones in the Eastern Mediterranean region. On November 22, 1995, a swarm of earthquakes began in the central part of the Gulf of Aqabah at Arrogance fault step zone (Lat. 28.8� N Long. 34.7� E) with a maximum magnitude of Mw = 7.3, followed by nearly 8,000 aftershocks (1.5 Mo 5.8) in the next 40 days. Seismic activity after the main shock was recorded using four portable short-period stations and fourteen permanent stations. A total of 141 aftershocks (2.5