Well warning in tsunami zone

The South Asian earthquake that spawned deadly tsunami waves also shifted water levels by at least three feet in a geologically sensitive Virginia well some 9,600 miles away from the epicentre, researchers say.

The well, near Christiansburg, which started oscillating about an hour after the magnitude 9 quake near Sumatra on December 26, is particularly sensitive to movements in the Earth and is monitored by the US Geological Survey.