The National Seismic Monitoring Network of the Saudi Geological Survey (SGS) detected weak earth tremors in Harat Al-Shaqah, where the maximum tremor was 2.88 on the Richter Scale. SGS also said the earth tremors occurred from 12 p.m. on Thursday to 12 p.m. today, confirming that all the variables in terms of thermal measurements and concentrations of radon gas, carbon dioxide, and the widening cracks in the ground are at safe rates.