Rescuers from the Red Cross and fire and police departments used dogs to search for any possible survivors in the mudslide zone, where tons of earth fell over some 125 homes, authorities from the region estimate. Sergio Cabanas, coordinator of emergency services in the area, said he had been contacted by several people who reported receiving messages on their cell phones from family members trapped under the rubble. Rescue workers laboring Friday in a frantic bid to find survivors pulled one man alive from the rubble of his collapsed home more than 15 hours after the landslide hit.