3 ms·
Japan's system ... http://en.wikipedia.org/wiki/Earthquake_Early_Warning_%28Japan%29 http://en.wikipedia.org/wiki/Earthquake_Early_Warning_%28Jap...
by damian2000 12y ago
Japan's system ... http://en.wikipedia.org/wiki/Earthquake_Early_Warning_%28Japan%29 http://en.wikipedia.org/wiki/Earthquake_Early_Warning_%28Jap...