4 ms·

In our case I guess we got the warning 10~20 seconds before the earthquake? I don't know, I didn't count it xD

• asutekku 6mo ago
  I use NERV, it gives you a countdown timer and i like to know whether to prepare or not
  • pezezin 6mo ago
    Ah, I just use the default Android built-in warning. It's funny working in an international project, because all of sudden you hear the alarm in four different languages xD