Grillo is a device that aims to bring a low-cost earthquake warning system to the masses in Mexico . A number of major fault lines are situated along Mexico 's Pacific Coast . Receivers dotted around five major cities , including Mexico City and Acapulco , will sound the alarm if they detect an earthquake . The most famous one being the San Andreas Fault, which runs from Southern California through Baja and into northern Mexico.
Grillo is a device that aims to bring a low-cost earthquake warning system to the masses in Mexico . A number of major fault lines are situated along Mexico 's Pacific Coast . The most famous one being the San Andreas Fault, which runs from Southern California through Baja and into northern Mexico.