RIYADH – A Saudi scientist monitoring Sunday’s earthquake has warned of fresh tremors and aftershocks, which can cause more deaths and devastation in Southern Asia. Dr. Khaled S. Al-Damegh of King Abdul Aziz City for Science and Technology (KACST), said here yesterday that Saudi Arabia’s measurement of the quake has been verified by the United States Geological Survey (USGS), which has revised the official magnitude up to 9.0 on the Richter scale.