The National Network Stations of the Saudi Geological Survey (SGS) detected two earth tremors measuring 4.55 and 3.2 on the Richter scale and were at a depth of 9.8 km and 10.8 km respectively. SGS also said the earth tremors occurred from 12 pm on Monday to 12 pm today, adding that a number of tremors measuring less than 3 on the Richter scale were detected. SGS confirmed that the thermal measurements are normal.