Frequency Seismic Response for EEWS Testing on Uniaxial Shaking Table.

Earthquake early warning systems are used as important tools in earthquake risk management, providing timely information to residents and both public and private emergency managers. By doing this, the potential impact of large magnitude seismic events is significantly reduced. These systems use seismic sensors in order to acquire real-time data for the weaker but fast moving P wave (usually the first 3-5 s of the earthquake) and specific algorithms to predict the magnitude and the arrival time of the slower but more destructive surface waves.