"According to traditional Japanese lore, the fish rise to the surface and beach themselves to warn of an impending earthquake - and there are scientific theories that bottom-dwelling fish may very well be susceptible to movements in seismic fault lines and act in uncharacteristic ways in advance of an earthquake - but experts here are placing more faith in their constant high-tech monitoring of the tectonic plates beneath the surface.

"In ancient times Japanese people believed that fish warned of coming earthquakes, particularly catfish," Hiroshi Tajihi, deputy director of the Kobe Earthquake Centre, told the Daily Telegraph."