With her owner holding her leash, Philippine pooch Hazel sniffs through rubble in a simulated search for survivors of a major earthquake in the capital Manila.But there are concerns that there might not be enough of them if a major earthquake were to hit the sprawling metropolis of Manila.
The United States experiences around 20,000 earthquakes each year. More often than not, they go unnoticed. However, experts warn that the US could see around 16 major earthquakes each year.