Rescue crews dug through mountains of shattered concrete in western Colombia on Tuesday, racing to find survivors after a powerful earthquake killed more

Rescuers are scrambling to find survivors after the 7.4-magnitude quake collapsed at least 61 buildings, including a hospital, and damaged some 1600 others.

Rescue workers and volunteers scrambled to find survivors after the 7.4-magnitude quake – Colombia’s strongest this century – damaged about 1600 buildings, including at least 61…