Al-Jazeera – Ali Bilal:
General Director of the National Center for Seismology and Volcanology at the Saudi Geological Survey Dr. Hani Zahran said the agency added two new seismic surveillance stations around the current seismic zone and two accelerator acceleration stations in the region located 25 km east of the city of Amlaj to conduct a study to develop a three-dimensional model. For the speed of seismic waves using several different techniques to determine the distribution of the thickness of the crust and geological structures and identify the seismic risks while continuing to monitor the thermal activity and alkalinity and salinity of groundwater in this region, seismic waves, prevailing frequencies and shear rates up to 30 meters deep , careful seismic mapping and an assessment of seismic hazards for the region.
Dr Zahran said during the field trip to the earthquake center, located 25 km southeast of the city of Amlaj, that the cause of the earthquakes in the region is the presence of vertical offset cracks, following the system of the cracks in the Red Sea called the cracks on the foot of the mountain. Creepy "tectonic processes in the region associated with the movement of the Arab plate, in addition to the presence of a crack in the direction of the northeast-southwest of the region cuts with the modern common cracks.
Dr Zahran explained that referring to the seismic activity maps in this area in recent years and from 2007 to now it has become apparent that seismic activity extends over time from the first seismic sites in the 2007 free zone and 2009 towards the free zone. Water in the earthquake zone, the depth of this water is very shallow and the temperature of this water is relatively higher than the areas in which it is located, which means that it was affected by these errors.
Dr Zahran expected the continuation of this local seismic activity in the coming period in a weak manner without creating any danger to the neighboring areas. The number of tremors observed so far today amounted to 129 earthquakes, the highest 3.7 on the Richter scale, while pointing out the need to apply building codes Resistant to earthquakes.