Submission + - An Early Warning System for Earthquakes
Iphtashu Fitz writes: Would 15 seconds be enough warning time to prepare for an earthquake? It certianly wouldn't be long enough to evacuate from where you live, but it may be just long enough to get out of a building or brace yourself in a doorframe or under a solid desk. Italian scientists may have discovered a way to measure the shockwaves of an earthquake a mere two seconds after it starts. It typically takes ten to twenty seconds for these shockwaves to spread 40 miles, so sensors that can transmit warnings at the speed of light may provide just enough warning before a major quake for people to brace themselves. Even more importantly it could allow for utilities like gas companies to automatically close safety valves, thus preventing potential fires or explosions in the aftermath of the quake.
