Technology.am (Sept. 17, 2009) — A Taiwan scientist has made an earthquake early warning system, which will allow public a crucial 15-second warning before quake causes destruction.
This invention has been achieved by Wu Yi-min, associate professor in the Geophysics Department of the National Taiwan University.
The gadget can be linked to computers and also be used to halt lifts in buildings when quakes strike.
The system depends on seismic waves, which move horizontally as well as vertically. The device detects and analyses these vertical waves, which travel faster.