Rescue workers and canine units urgently sifted through rubble in the winter cold Wednesday in what the prime minister called a race against time after powerful earthquakes in western Japan left at least 62 people dead and dozens believed trapped under collapsed buildings.
Ishikawa prefecture and nearby areas were rattled by a major 4.9 magnitude aftershock in the early hours among the dozens of aftershocks that have followed a magnitude 7.6 temblor two days ago.
