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The race to find survivors of a 7.4 magnitude earthquake
continues across Western Colombia.
Rescue workers called for silence as they picked through rubble,
listening for signs of life.
Hundreds of people are dead and thousands more are injured or missing.
"The problem is not just the physical damage,"
says Bloomberg's Oscar Medina, who's based in Bogota.
"We don't really understand the magnitude of the impact
because a lot of roads are blocked."
"There is no phone or internet signal."
Oscar says rescue efforts have varied from one state to another,
and they've been complicated by difficult terrain,
limited power and internet infrastructure,
years of poverty and civil conflict in the hardest hit areas.
Chocó, the epicenter of the quake,
is one of the poorest states in the country.
"Some people have to sleep outside their homes
because their houses are destroyed,"
"so that's a challenge for the government because they have to find ways"