Egyptian phones predicted earthquake pre-alert
The article focused on Google's early earthquake warning system used in Egypt. It explains that the system relies on sensors within smartphones, especially accelerometers, to detect ground vibrations caused by earthquakes by analyzing data collected from a large number of phones in a specific area. The system sends instant alerts to users before the actual seismic waves arrive, thanks to the significant difference in the speed of data transmission over the internet and the speed of seismic waves within the Earth. The study shows that about 85% of users who received the alert felt the earthquake, and 36% of them received the warning before the vibrations started, which highlights the effectiveness of the early warning system. Although the system does not predict earthquakes in advance, it provides a brief warning period that can help reduce injuries and damages when an earthquake occurs.
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