Why the 7.8-magnitude earthquake that hit Turkey and Syria was so deadly and how rescue efforts are going.Read more:Early Monday morning, a 7.8-magnitude earthquake rocked southern Turkey and northwestern Syria. The shock was felt as far as Egypt, leveling buildings and killing more than 7,000 people as of Tuesday afternoon. So far, rescue efforts have been complicated by frigid temperatures, and the earthquake has compounded other crises in war-torn Syria. Beirut-based correspondent Sarah Dadouch has been speaking to survivors and describes the devastation and what the aftermath will look like.