1. Name: AHMAD AL-HUSIEN, WAJDI MESAAD

2. Organization: NDC Analyst, Jordan Seismological Observatory(JSO), Natural Resources Authority

3. Course: 2001 G

4. Title: SEISMIC OBSERVATION IN JORDAN

5. Abstract:
The rate of seismic activity in Jordan is moderate, however many of the strong seismic events are located along the axis of Dead Sea Rift, which is formed the northwestern boundary of the Arabian plate. Matching magnetic anomalies across the rift has indicated a total strike-slip movement of approximately 107-km.
The Jordan Seismological Observatory began routine operation in September 1983. Seismic data being telemetred via radio on assigned frequencies to the Natural Resources Authority building in Amman from 26 stations cover all areas in Jordan, also 13 Portable Seismic stations for after shock and field studies, in addition to Strong Motion Network which consist of 20 digital accelerographs deployed in the main cities and dams.
The earthquake location program SEISAN is used for the routine location of hypocenters, in addition to the velocity-depth model which shows a p-velocity average for the upper sedimentary of 3.5 km/sec, and the crust is underlain by a normal mantle with a p-velocity of 8.00 to 8.2 km/sec.
The Seismological Observatory issues annual and monthly bulletin about the event activity (Earthquake in Jordan and Adjacent Areas), which are reported to the adjacent Observatories and to the International Seismological Center.